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57/3 1 [P.T.O. 
 
 
 
 
¸üÖê»Ö ®ÖÓ. 
Roll No.  
 
 
 
•Öß¾Ö ×¾Ö–ÖÖ®Ö (ÃÖî¨üÖ×®ŸÖÛú) 
BIOLOGY (Theory)  
×®Ö¬ÖÖÔ׸üŸÖ ÃÖ´ÖµÖ  :    3 ‘ÖÓ™êü ] [ †×¬ÖÛúŸÖ´Ö †ÓÛú  : 70 
Time allowed : 3 hours ] [ Maximum Marks : 70 
 
ÃÖÖ´ÖÖ®µÖ ×®Ö¤ìü¿Ö    : : : :   
    (i) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¯ÖÖÑ“Ö ÜÖÞ›üÖë ´Öë 26 ¯ÖÏ¿®Ö פü‹ ÝÖ‹ Æïü … ÃÖ³Öß ¯ÖÏ¿®Ö †×®Ö¾ÖÖµÖÔ Æïü … 
 (ii) ÜÖÞ›ü – A ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 1 ÃÖê 5 †×ŸÖ »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 1 †ÓÛú ÛúÖ Æîü …  
 (iii) ÜÖÞ›ü – B ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 6 ÃÖê 10 »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö I ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 2 †ÓÛúÖë ÛúÖ Æîü …  
 (iv) ÜÖÞ›ü – C ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 11 ÃÖê 22 »Ö‘Öã-ˆ¢Ö¸üßµÖü ¯ÖÏ¿®Ö II ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 3 †ÓÛúÖë ÛúÖ Æîü …  
 (v) ÜÖÞ›ü – D ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 23 ´Öæ»µÖ †Ö¬ÖÖ׸üŸÖ ¯ÖÏ¿®Ö 4 †ÓÛúÖë ÛúÖ Æîü …  
 (vi) ÜÖÞ›ü – E ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 24 ÃÖê 26 ¤üß‘ÖÔ-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 5 †ÓÛúÖë ÛúÖ Æîü …  
 (vii) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ÃÖ´ÖÝÖÏ ¯Ö¸ü ÛúÖê‡Ô ×¾ÖÛú»¯Ö ®ÖÆüà Æîü, ×±ú¸ü ³Öß 2 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë, 3 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë 
†Öî¸ü 5 †ÓÛúÖë ¾ÖÖ»Öê ÃÖ³Ößú ŸÖß®ÖÖë ¯ÖÏ¿®ÖÖë ´Öë ³Öߟָüß “ÖµÖ®Ö-×¾ÖÛú»¯Ö פü‹ ÝÖ‹ Æïü … ¯ÖÏŸµÖêÛú ¯Ö¸üßõÖÖ£Öá ÛúÖê ‹êÃÖê ¯ÖÏ¿®ÖÖë 
Ûêú ¤üÖê ×¾ÖÛú»¯ÖÖë ´Öë ÃÖê ÛúÖê‡Ô ‹Ûú ¯ÖÏ¿®Ö Æü»Ö Ûú¸ü®ÖÖ Æîü …  
 Series : SSO/C 
57/3
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ´ÖãצüŸÖ ¯Öéšü 8 Æïü … 
• ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¤üÖ×Æü®Öê ÆüÖ£Ö Ûúß †Öê¸ü פü‹ ÝÖ‹ ÛúÖê›ü ®Ö´²Ö¸ü ÛúÖê ”ûÖ¡Ö ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü ¯Ö¸ü ×»ÖÜÖë …  
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë 26 ¯ÖÏ¿®Ö Æïü …  
• Ûéú¯ÖµÖÖ ¯ÖÏ¿®Ö ÛúÖ ˆ¢Ö¸ü ×»ÖÜÖ®ÖÖ ¿Öãºþ Ûú¸ü®Öê ÃÖê ¯ÖÆü»Öê, ¯ÖÏ¿®Ö ÛúÖ ÛÎú´ÖÖÓÛú †¾Ö¿µÖ ×»ÖÜÖë …  
• ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌü®Öê Ûêú ×»Ö‹ 15 ×´Ö®Ö™ü ÛúÖ ÃÖ´ÖµÖ ×¤üµÖÖ ÝÖµÖÖ Æîü … ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖ ×¾ÖŸÖ¸üÞÖ ¯Öæ¾ÖÖÔÆËü®Ö ´Öë 10.15 ²Ö•Öê 
×ÛúµÖÖ •ÖÖµÖêÝÖÖ … 10.15 ²Ö•Öê ÃÖê 10.30 ²Ö•Öê ŸÖÛú ”ûÖ¡Ö Ûêú¾Ö»Ö ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌëüÝÖê †Öî¸ü ‡ÃÖ †¾Ö×¬Ö Ûêú ¤üÖî¸üÖ®Ö ¾Öê 
ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ ¯Ö¸ü ÛúÖê‡Ô ˆ¢Ö¸ü ®ÖÆüà ×»ÖÜÖëÝÖê …  
• Please check that this question paper contains 8 printed pages. 
• Code number given on the right hand side of the question paper should be written on the 
title page of the answer-book by the candidate. 
• Please check that this question paper contains 26 questions. 
• Please write down the Serial Number of the question before attempting it. 
• 15 minute time has been allotted to read this question paper. The question paper will be 
distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the 
question paper only and will not write any answer on the answer-book during this period. 
ÛúÖê›ü ®ÖÓ. 
Code No.  
    
¯Ö¸üßõÖÖ£Öá ÛúÖê›ü ÛúÖê ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü 
¯Ö¸ü †¾Ö¿µÖ ×»ÖÜÖë … 
Candidates must write the Code on 
the title page of the answer-book. 
 
SET – 3 
Page 2


57/3 1 [P.T.O. 
 
 
 
 
¸üÖê»Ö ®ÖÓ. 
Roll No.  
 
 
 
•Öß¾Ö ×¾Ö–ÖÖ®Ö (ÃÖî¨üÖ×®ŸÖÛú) 
BIOLOGY (Theory)  
×®Ö¬ÖÖÔ׸üŸÖ ÃÖ´ÖµÖ  :    3 ‘ÖÓ™êü ] [ †×¬ÖÛúŸÖ´Ö †ÓÛú  : 70 
Time allowed : 3 hours ] [ Maximum Marks : 70 
 
ÃÖÖ´ÖÖ®µÖ ×®Ö¤ìü¿Ö    : : : :   
    (i) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¯ÖÖÑ“Ö ÜÖÞ›üÖë ´Öë 26 ¯ÖÏ¿®Ö פü‹ ÝÖ‹ Æïü … ÃÖ³Öß ¯ÖÏ¿®Ö †×®Ö¾ÖÖµÖÔ Æïü … 
 (ii) ÜÖÞ›ü – A ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 1 ÃÖê 5 †×ŸÖ »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 1 †ÓÛú ÛúÖ Æîü …  
 (iii) ÜÖÞ›ü – B ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 6 ÃÖê 10 »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö I ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 2 †ÓÛúÖë ÛúÖ Æîü …  
 (iv) ÜÖÞ›ü – C ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 11 ÃÖê 22 »Ö‘Öã-ˆ¢Ö¸üßµÖü ¯ÖÏ¿®Ö II ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 3 †ÓÛúÖë ÛúÖ Æîü …  
 (v) ÜÖÞ›ü – D ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 23 ´Öæ»µÖ †Ö¬ÖÖ׸üŸÖ ¯ÖÏ¿®Ö 4 †ÓÛúÖë ÛúÖ Æîü …  
 (vi) ÜÖÞ›ü – E ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 24 ÃÖê 26 ¤üß‘ÖÔ-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 5 †ÓÛúÖë ÛúÖ Æîü …  
 (vii) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ÃÖ´ÖÝÖÏ ¯Ö¸ü ÛúÖê‡Ô ×¾ÖÛú»¯Ö ®ÖÆüà Æîü, ×±ú¸ü ³Öß 2 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë, 3 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë 
†Öî¸ü 5 †ÓÛúÖë ¾ÖÖ»Öê ÃÖ³Ößú ŸÖß®ÖÖë ¯ÖÏ¿®ÖÖë ´Öë ³Öߟָüß “ÖµÖ®Ö-×¾ÖÛú»¯Ö פü‹ ÝÖ‹ Æïü … ¯ÖÏŸµÖêÛú ¯Ö¸üßõÖÖ£Öá ÛúÖê ‹êÃÖê ¯ÖÏ¿®ÖÖë 
Ûêú ¤üÖê ×¾ÖÛú»¯ÖÖë ´Öë ÃÖê ÛúÖê‡Ô ‹Ûú ¯ÖÏ¿®Ö Æü»Ö Ûú¸ü®ÖÖ Æîü …  
 Series : SSO/C 
57/3
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ´ÖãצüŸÖ ¯Öéšü 8 Æïü … 
• ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¤üÖ×Æü®Öê ÆüÖ£Ö Ûúß †Öê¸ü פü‹ ÝÖ‹ ÛúÖê›ü ®Ö´²Ö¸ü ÛúÖê ”ûÖ¡Ö ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü ¯Ö¸ü ×»ÖÜÖë …  
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë 26 ¯ÖÏ¿®Ö Æïü …  
• Ûéú¯ÖµÖÖ ¯ÖÏ¿®Ö ÛúÖ ˆ¢Ö¸ü ×»ÖÜÖ®ÖÖ ¿Öãºþ Ûú¸ü®Öê ÃÖê ¯ÖÆü»Öê, ¯ÖÏ¿®Ö ÛúÖ ÛÎú´ÖÖÓÛú †¾Ö¿µÖ ×»ÖÜÖë …  
• ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌü®Öê Ûêú ×»Ö‹ 15 ×´Ö®Ö™ü ÛúÖ ÃÖ´ÖµÖ ×¤üµÖÖ ÝÖµÖÖ Æîü … ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖ ×¾ÖŸÖ¸üÞÖ ¯Öæ¾ÖÖÔÆËü®Ö ´Öë 10.15 ²Ö•Öê 
×ÛúµÖÖ •ÖÖµÖêÝÖÖ … 10.15 ²Ö•Öê ÃÖê 10.30 ²Ö•Öê ŸÖÛú ”ûÖ¡Ö Ûêú¾Ö»Ö ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌëüÝÖê †Öî¸ü ‡ÃÖ †¾Ö×¬Ö Ûêú ¤üÖî¸üÖ®Ö ¾Öê 
ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ ¯Ö¸ü ÛúÖê‡Ô ˆ¢Ö¸ü ®ÖÆüà ×»ÖÜÖëÝÖê …  
• Please check that this question paper contains 8 printed pages. 
• Code number given on the right hand side of the question paper should be written on the 
title page of the answer-book by the candidate. 
• Please check that this question paper contains 26 questions. 
• Please write down the Serial Number of the question before attempting it. 
• 15 minute time has been allotted to read this question paper. The question paper will be 
distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the 
question paper only and will not write any answer on the answer-book during this period. 
ÛúÖê›ü ®ÖÓ. 
Code No.  
    
¯Ö¸üßõÖÖ£Öá ÛúÖê›ü ÛúÖê ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü 
¯Ö¸ü †¾Ö¿µÖ ×»ÖÜÖë … 
Candidates must write the Code on 
the title page of the answer-book. 
 
SET – 3 
57/3 2  
General Instructions :   
 (i) There are a total of 26 questions and five sections in the question paper.                     
All questions are compulsory. 
 (ii) Section A contains questions number 1 to 5, Very Short Answer type questions of       
1 mark each. 
 (iii) Section B contains questions number 6 to 10, Short Answer type I questions of         
2 marks each. 
 (iv) Section C contains questions number 11 to 22, Short Answer type II questions of             
3 marks each. 
 (v) Section D contains question number 23, Value Based Question of 4 marks. 
 (vi) Section E contains questions number 24 to 26, Long Answer type questions of         
5 marks each. 
 (vii) There is no overall choice in the question paper, however, an internal choice is 
provided in one question of 2 marks, one question of 3 marks and all the three 
questions of 5 marks. In these questions, an examinee is to attempt any one of the 
two given alternatives. 
 
ÜÖÞ›ü – A 
SECTION – A 
1. ×ÛúÃÖ †Ö¬ÖÖ¸ü ¯Ö¸ü ´ÖÖ®Ö¾Ö Ÿ¾Ö“ÖÖ ÛúÖ ¸ÓüÝÖ †®ÖêÛú•Öß®Öß ´ÖÖ®ÖÖ •ÖÖŸÖÖ Æîü ? 1 
 On what basis is the skin colour in humans considered polygenic ? 
 
2. ¤æü¬Ö ÛúÖê •Ö´ÖÖ®Öê (¤üÆüß ²Ö®ÖÖ®Öê) Ûêú †×ŸÖ׸üŒŸÖ »Öî׌™üÛú †´»Ö ²Öüß׸üµÖÖ Æü´ÖÖ¸êü ×»Ö‹ ŒµÖÖë »ÖÖ³ÖÛúÖ¸üß ÆüÖêŸÖê Æïü ? 1 
 How is lactic acid bacteria beneficial to us other than helping in curdling the milk ? 
 
3. ³ÖÖ¸üŸÖ¾ÖÂÖÔ Ûêú ¯Ö׿“Ö´Öß ‘ÖÖ™üÖë ÛúÖê •Öî¾Ö ÆüÖò™ü-ïÖÖò™ü ŒµÖÖë ‘ÖÖê×ÂÖŸÖ ×ÛúµÖÖ ÝÖµÖÖ Æîü ? 1 
 Why Western Ghats in India have been declared as biological hot-spots ? 
 
4.  
 µÖÆüÖÑ ×¤ü‹ ÝÖ‹ ×“Ö¡Ö ÛúÖê ¯ÖÆü“ÖÖ×®Ö‹ ŸÖ£ÖÖ ˆÃÖ ÛúÖ×µÖÛú ³ÖÖÝÖ Ûúß “Ö“ÖÖÔ Ûúßו֋ •ÖÖê ˆÃÖê •Ö®Ö®Ö ´Öë ´Ö¤ü¤ü Ûú¸üŸÖÖ Æîü … 1 
Page 3


57/3 1 [P.T.O. 
 
 
 
 
¸üÖê»Ö ®ÖÓ. 
Roll No.  
 
 
 
•Öß¾Ö ×¾Ö–ÖÖ®Ö (ÃÖî¨üÖ×®ŸÖÛú) 
BIOLOGY (Theory)  
×®Ö¬ÖÖÔ׸üŸÖ ÃÖ´ÖµÖ  :    3 ‘ÖÓ™êü ] [ †×¬ÖÛúŸÖ´Ö †ÓÛú  : 70 
Time allowed : 3 hours ] [ Maximum Marks : 70 
 
ÃÖÖ´ÖÖ®µÖ ×®Ö¤ìü¿Ö    : : : :   
    (i) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¯ÖÖÑ“Ö ÜÖÞ›üÖë ´Öë 26 ¯ÖÏ¿®Ö פü‹ ÝÖ‹ Æïü … ÃÖ³Öß ¯ÖÏ¿®Ö †×®Ö¾ÖÖµÖÔ Æïü … 
 (ii) ÜÖÞ›ü – A ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 1 ÃÖê 5 †×ŸÖ »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 1 †ÓÛú ÛúÖ Æîü …  
 (iii) ÜÖÞ›ü – B ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 6 ÃÖê 10 »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö I ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 2 †ÓÛúÖë ÛúÖ Æîü …  
 (iv) ÜÖÞ›ü – C ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 11 ÃÖê 22 »Ö‘Öã-ˆ¢Ö¸üßµÖü ¯ÖÏ¿®Ö II ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 3 †ÓÛúÖë ÛúÖ Æîü …  
 (v) ÜÖÞ›ü – D ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 23 ´Öæ»µÖ †Ö¬ÖÖ׸üŸÖ ¯ÖÏ¿®Ö 4 †ÓÛúÖë ÛúÖ Æîü …  
 (vi) ÜÖÞ›ü – E ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 24 ÃÖê 26 ¤üß‘ÖÔ-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 5 †ÓÛúÖë ÛúÖ Æîü …  
 (vii) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ÃÖ´ÖÝÖÏ ¯Ö¸ü ÛúÖê‡Ô ×¾ÖÛú»¯Ö ®ÖÆüà Æîü, ×±ú¸ü ³Öß 2 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë, 3 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë 
†Öî¸ü 5 †ÓÛúÖë ¾ÖÖ»Öê ÃÖ³Ößú ŸÖß®ÖÖë ¯ÖÏ¿®ÖÖë ´Öë ³Öߟָüß “ÖµÖ®Ö-×¾ÖÛú»¯Ö פü‹ ÝÖ‹ Æïü … ¯ÖÏŸµÖêÛú ¯Ö¸üßõÖÖ£Öá ÛúÖê ‹êÃÖê ¯ÖÏ¿®ÖÖë 
Ûêú ¤üÖê ×¾ÖÛú»¯ÖÖë ´Öë ÃÖê ÛúÖê‡Ô ‹Ûú ¯ÖÏ¿®Ö Æü»Ö Ûú¸ü®ÖÖ Æîü …  
 Series : SSO/C 
57/3
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ´ÖãצüŸÖ ¯Öéšü 8 Æïü … 
• ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¤üÖ×Æü®Öê ÆüÖ£Ö Ûúß †Öê¸ü פü‹ ÝÖ‹ ÛúÖê›ü ®Ö´²Ö¸ü ÛúÖê ”ûÖ¡Ö ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü ¯Ö¸ü ×»ÖÜÖë …  
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë 26 ¯ÖÏ¿®Ö Æïü …  
• Ûéú¯ÖµÖÖ ¯ÖÏ¿®Ö ÛúÖ ˆ¢Ö¸ü ×»ÖÜÖ®ÖÖ ¿Öãºþ Ûú¸ü®Öê ÃÖê ¯ÖÆü»Öê, ¯ÖÏ¿®Ö ÛúÖ ÛÎú´ÖÖÓÛú †¾Ö¿µÖ ×»ÖÜÖë …  
• ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌü®Öê Ûêú ×»Ö‹ 15 ×´Ö®Ö™ü ÛúÖ ÃÖ´ÖµÖ ×¤üµÖÖ ÝÖµÖÖ Æîü … ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖ ×¾ÖŸÖ¸üÞÖ ¯Öæ¾ÖÖÔÆËü®Ö ´Öë 10.15 ²Ö•Öê 
×ÛúµÖÖ •ÖÖµÖêÝÖÖ … 10.15 ²Ö•Öê ÃÖê 10.30 ²Ö•Öê ŸÖÛú ”ûÖ¡Ö Ûêú¾Ö»Ö ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌëüÝÖê †Öî¸ü ‡ÃÖ †¾Ö×¬Ö Ûêú ¤üÖî¸üÖ®Ö ¾Öê 
ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ ¯Ö¸ü ÛúÖê‡Ô ˆ¢Ö¸ü ®ÖÆüà ×»ÖÜÖëÝÖê …  
• Please check that this question paper contains 8 printed pages. 
• Code number given on the right hand side of the question paper should be written on the 
title page of the answer-book by the candidate. 
• Please check that this question paper contains 26 questions. 
• Please write down the Serial Number of the question before attempting it. 
• 15 minute time has been allotted to read this question paper. The question paper will be 
distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the 
question paper only and will not write any answer on the answer-book during this period. 
ÛúÖê›ü ®ÖÓ. 
Code No.  
    
¯Ö¸üßõÖÖ£Öá ÛúÖê›ü ÛúÖê ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü 
¯Ö¸ü †¾Ö¿µÖ ×»ÖÜÖë … 
Candidates must write the Code on 
the title page of the answer-book. 
 
SET – 3 
57/3 2  
General Instructions :   
 (i) There are a total of 26 questions and five sections in the question paper.                     
All questions are compulsory. 
 (ii) Section A contains questions number 1 to 5, Very Short Answer type questions of       
1 mark each. 
 (iii) Section B contains questions number 6 to 10, Short Answer type I questions of         
2 marks each. 
 (iv) Section C contains questions number 11 to 22, Short Answer type II questions of             
3 marks each. 
 (v) Section D contains question number 23, Value Based Question of 4 marks. 
 (vi) Section E contains questions number 24 to 26, Long Answer type questions of         
5 marks each. 
 (vii) There is no overall choice in the question paper, however, an internal choice is 
provided in one question of 2 marks, one question of 3 marks and all the three 
questions of 5 marks. In these questions, an examinee is to attempt any one of the 
two given alternatives. 
 
ÜÖÞ›ü – A 
SECTION – A 
1. ×ÛúÃÖ †Ö¬ÖÖ¸ü ¯Ö¸ü ´ÖÖ®Ö¾Ö Ÿ¾Ö“ÖÖ ÛúÖ ¸ÓüÝÖ †®ÖêÛú•Öß®Öß ´ÖÖ®ÖÖ •ÖÖŸÖÖ Æîü ? 1 
 On what basis is the skin colour in humans considered polygenic ? 
 
2. ¤æü¬Ö ÛúÖê •Ö´ÖÖ®Öê (¤üÆüß ²Ö®ÖÖ®Öê) Ûêú †×ŸÖ׸üŒŸÖ »Öî׌™üÛú †´»Ö ²Öüß׸üµÖÖ Æü´ÖÖ¸êü ×»Ö‹ ŒµÖÖë »ÖÖ³ÖÛúÖ¸üß ÆüÖêŸÖê Æïü ? 1 
 How is lactic acid bacteria beneficial to us other than helping in curdling the milk ? 
 
3. ³ÖÖ¸üŸÖ¾ÖÂÖÔ Ûêú ¯Ö׿“Ö´Öß ‘ÖÖ™üÖë ÛúÖê •Öî¾Ö ÆüÖò™ü-ïÖÖò™ü ŒµÖÖë ‘ÖÖê×ÂÖŸÖ ×ÛúµÖÖ ÝÖµÖÖ Æîü ? 1 
 Why Western Ghats in India have been declared as biological hot-spots ? 
 
4.  
 µÖÆüÖÑ ×¤ü‹ ÝÖ‹ ×“Ö¡Ö ÛúÖê ¯ÖÆü“ÖÖ×®Ö‹ ŸÖ£ÖÖ ˆÃÖ ÛúÖ×µÖÛú ³ÖÖÝÖ Ûúß “Ö“ÖÖÔ Ûúßו֋ •ÖÖê ˆÃÖê •Ö®Ö®Ö ´Öë ´Ö¤ü¤ü Ûú¸üŸÖÖ Æîü … 1 
57/3 3 [P.T.O. 
 Identify the picture and mention the vegetative part that helps it to propagate. 
 
 
5.  Œ»ÖÖ‡®Öê±Ìêú»™ü¸ü ØÃÖ›ÒüÖê´Ö ÃÖê ÝÖÏÃŸÖ ¾µÖ׌ŸÖµÖÖë ´Öë ¯ÖÖ‹ •ÖÖ®Öê ¾ÖÖ»Öê ÛÎúÖê´ÖÖêÃÖÖê´Öß (ÝÖãÞÖÃÖæ¡Öß) ¯ÖϳÖÖ¾Ö ²ÖŸÖÖ‡‹ … 1 
 Write the chromosomal defect in individuals affected with Klinefelter’s syndrome. 
 
ÜÖÞ›ü – B  
SECTION – B 
6.  ×®Ö´®Ö×»Ö×ÜÖŸÖ Ûêú ÛúÖµÖÔ ²ÖŸÖÖ‡‹ : 2 
 (a) cry 1AC •Öß®Ö  
 (b) RNA ¾µÖןÖÛú¸üÞÖ (RNAi) 
 Write the functions of  
 (a) cry 1AC gene 
 (b) RNA interference (RNAi) 
 
7.     
 (a) CFC ÛúÖ ¯Öæ¸üÖ ®ÖÖ´Ö ×»Ö×ÜÖ‹ … 
 (b) µÖÆü †Öê•ÖÌÖê®Ö ÛúÖê ×ÛúÃÖ ¯ÖÏÛúÖ¸ü †ÖòŒÃÖß•Ö®Ö ´Öë ×®Ö´®ÖßÛéúŸÖ Ûú¸ü ¤êüŸÖÖ Æîü ? 2 
  
CFCs O
3
O
2
Earth
 
 (a) Expand CFC. 
 (b) How does it reduce ozone to oxygen ? 
Page 4


57/3 1 [P.T.O. 
 
 
 
 
¸üÖê»Ö ®ÖÓ. 
Roll No.  
 
 
 
•Öß¾Ö ×¾Ö–ÖÖ®Ö (ÃÖî¨üÖ×®ŸÖÛú) 
BIOLOGY (Theory)  
×®Ö¬ÖÖÔ׸üŸÖ ÃÖ´ÖµÖ  :    3 ‘ÖÓ™êü ] [ †×¬ÖÛúŸÖ´Ö †ÓÛú  : 70 
Time allowed : 3 hours ] [ Maximum Marks : 70 
 
ÃÖÖ´ÖÖ®µÖ ×®Ö¤ìü¿Ö    : : : :   
    (i) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¯ÖÖÑ“Ö ÜÖÞ›üÖë ´Öë 26 ¯ÖÏ¿®Ö פü‹ ÝÖ‹ Æïü … ÃÖ³Öß ¯ÖÏ¿®Ö †×®Ö¾ÖÖµÖÔ Æïü … 
 (ii) ÜÖÞ›ü – A ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 1 ÃÖê 5 †×ŸÖ »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 1 †ÓÛú ÛúÖ Æîü …  
 (iii) ÜÖÞ›ü – B ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 6 ÃÖê 10 »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö I ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 2 †ÓÛúÖë ÛúÖ Æîü …  
 (iv) ÜÖÞ›ü – C ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 11 ÃÖê 22 »Ö‘Öã-ˆ¢Ö¸üßµÖü ¯ÖÏ¿®Ö II ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 3 †ÓÛúÖë ÛúÖ Æîü …  
 (v) ÜÖÞ›ü – D ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 23 ´Öæ»µÖ †Ö¬ÖÖ׸üŸÖ ¯ÖÏ¿®Ö 4 †ÓÛúÖë ÛúÖ Æîü …  
 (vi) ÜÖÞ›ü – E ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 24 ÃÖê 26 ¤üß‘ÖÔ-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 5 †ÓÛúÖë ÛúÖ Æîü …  
 (vii) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ÃÖ´ÖÝÖÏ ¯Ö¸ü ÛúÖê‡Ô ×¾ÖÛú»¯Ö ®ÖÆüà Æîü, ×±ú¸ü ³Öß 2 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë, 3 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë 
†Öî¸ü 5 †ÓÛúÖë ¾ÖÖ»Öê ÃÖ³Ößú ŸÖß®ÖÖë ¯ÖÏ¿®ÖÖë ´Öë ³Öߟָüß “ÖµÖ®Ö-×¾ÖÛú»¯Ö פü‹ ÝÖ‹ Æïü … ¯ÖÏŸµÖêÛú ¯Ö¸üßõÖÖ£Öá ÛúÖê ‹êÃÖê ¯ÖÏ¿®ÖÖë 
Ûêú ¤üÖê ×¾ÖÛú»¯ÖÖë ´Öë ÃÖê ÛúÖê‡Ô ‹Ûú ¯ÖÏ¿®Ö Æü»Ö Ûú¸ü®ÖÖ Æîü …  
 Series : SSO/C 
57/3
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ´ÖãצüŸÖ ¯Öéšü 8 Æïü … 
• ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¤üÖ×Æü®Öê ÆüÖ£Ö Ûúß †Öê¸ü פü‹ ÝÖ‹ ÛúÖê›ü ®Ö´²Ö¸ü ÛúÖê ”ûÖ¡Ö ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü ¯Ö¸ü ×»ÖÜÖë …  
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë 26 ¯ÖÏ¿®Ö Æïü …  
• Ûéú¯ÖµÖÖ ¯ÖÏ¿®Ö ÛúÖ ˆ¢Ö¸ü ×»ÖÜÖ®ÖÖ ¿Öãºþ Ûú¸ü®Öê ÃÖê ¯ÖÆü»Öê, ¯ÖÏ¿®Ö ÛúÖ ÛÎú´ÖÖÓÛú †¾Ö¿µÖ ×»ÖÜÖë …  
• ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌü®Öê Ûêú ×»Ö‹ 15 ×´Ö®Ö™ü ÛúÖ ÃÖ´ÖµÖ ×¤üµÖÖ ÝÖµÖÖ Æîü … ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖ ×¾ÖŸÖ¸üÞÖ ¯Öæ¾ÖÖÔÆËü®Ö ´Öë 10.15 ²Ö•Öê 
×ÛúµÖÖ •ÖÖµÖêÝÖÖ … 10.15 ²Ö•Öê ÃÖê 10.30 ²Ö•Öê ŸÖÛú ”ûÖ¡Ö Ûêú¾Ö»Ö ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌëüÝÖê †Öî¸ü ‡ÃÖ †¾Ö×¬Ö Ûêú ¤üÖî¸üÖ®Ö ¾Öê 
ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ ¯Ö¸ü ÛúÖê‡Ô ˆ¢Ö¸ü ®ÖÆüà ×»ÖÜÖëÝÖê …  
• Please check that this question paper contains 8 printed pages. 
• Code number given on the right hand side of the question paper should be written on the 
title page of the answer-book by the candidate. 
• Please check that this question paper contains 26 questions. 
• Please write down the Serial Number of the question before attempting it. 
• 15 minute time has been allotted to read this question paper. The question paper will be 
distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the 
question paper only and will not write any answer on the answer-book during this period. 
ÛúÖê›ü ®ÖÓ. 
Code No.  
    
¯Ö¸üßõÖÖ£Öá ÛúÖê›ü ÛúÖê ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü 
¯Ö¸ü †¾Ö¿µÖ ×»ÖÜÖë … 
Candidates must write the Code on 
the title page of the answer-book. 
 
SET – 3 
57/3 2  
General Instructions :   
 (i) There are a total of 26 questions and five sections in the question paper.                     
All questions are compulsory. 
 (ii) Section A contains questions number 1 to 5, Very Short Answer type questions of       
1 mark each. 
 (iii) Section B contains questions number 6 to 10, Short Answer type I questions of         
2 marks each. 
 (iv) Section C contains questions number 11 to 22, Short Answer type II questions of             
3 marks each. 
 (v) Section D contains question number 23, Value Based Question of 4 marks. 
 (vi) Section E contains questions number 24 to 26, Long Answer type questions of         
5 marks each. 
 (vii) There is no overall choice in the question paper, however, an internal choice is 
provided in one question of 2 marks, one question of 3 marks and all the three 
questions of 5 marks. In these questions, an examinee is to attempt any one of the 
two given alternatives. 
 
ÜÖÞ›ü – A 
SECTION – A 
1. ×ÛúÃÖ †Ö¬ÖÖ¸ü ¯Ö¸ü ´ÖÖ®Ö¾Ö Ÿ¾Ö“ÖÖ ÛúÖ ¸ÓüÝÖ †®ÖêÛú•Öß®Öß ´ÖÖ®ÖÖ •ÖÖŸÖÖ Æîü ? 1 
 On what basis is the skin colour in humans considered polygenic ? 
 
2. ¤æü¬Ö ÛúÖê •Ö´ÖÖ®Öê (¤üÆüß ²Ö®ÖÖ®Öê) Ûêú †×ŸÖ׸üŒŸÖ »Öî׌™üÛú †´»Ö ²Öüß׸üµÖÖ Æü´ÖÖ¸êü ×»Ö‹ ŒµÖÖë »ÖÖ³ÖÛúÖ¸üß ÆüÖêŸÖê Æïü ? 1 
 How is lactic acid bacteria beneficial to us other than helping in curdling the milk ? 
 
3. ³ÖÖ¸üŸÖ¾ÖÂÖÔ Ûêú ¯Ö׿“Ö´Öß ‘ÖÖ™üÖë ÛúÖê •Öî¾Ö ÆüÖò™ü-ïÖÖò™ü ŒµÖÖë ‘ÖÖê×ÂÖŸÖ ×ÛúµÖÖ ÝÖµÖÖ Æîü ? 1 
 Why Western Ghats in India have been declared as biological hot-spots ? 
 
4.  
 µÖÆüÖÑ ×¤ü‹ ÝÖ‹ ×“Ö¡Ö ÛúÖê ¯ÖÆü“ÖÖ×®Ö‹ ŸÖ£ÖÖ ˆÃÖ ÛúÖ×µÖÛú ³ÖÖÝÖ Ûúß “Ö“ÖÖÔ Ûúßו֋ •ÖÖê ˆÃÖê •Ö®Ö®Ö ´Öë ´Ö¤ü¤ü Ûú¸üŸÖÖ Æîü … 1 
57/3 3 [P.T.O. 
 Identify the picture and mention the vegetative part that helps it to propagate. 
 
 
5.  Œ»ÖÖ‡®Öê±Ìêú»™ü¸ü ØÃÖ›ÒüÖê´Ö ÃÖê ÝÖÏÃŸÖ ¾µÖ׌ŸÖµÖÖë ´Öë ¯ÖÖ‹ •ÖÖ®Öê ¾ÖÖ»Öê ÛÎúÖê´ÖÖêÃÖÖê´Öß (ÝÖãÞÖÃÖæ¡Öß) ¯ÖϳÖÖ¾Ö ²ÖŸÖÖ‡‹ … 1 
 Write the chromosomal defect in individuals affected with Klinefelter’s syndrome. 
 
ÜÖÞ›ü – B  
SECTION – B 
6.  ×®Ö´®Ö×»Ö×ÜÖŸÖ Ûêú ÛúÖµÖÔ ²ÖŸÖÖ‡‹ : 2 
 (a) cry 1AC •Öß®Ö  
 (b) RNA ¾µÖןÖÛú¸üÞÖ (RNAi) 
 Write the functions of  
 (a) cry 1AC gene 
 (b) RNA interference (RNAi) 
 
7.     
 (a) CFC ÛúÖ ¯Öæ¸üÖ ®ÖÖ´Ö ×»Ö×ÜÖ‹ … 
 (b) µÖÆü †Öê•ÖÌÖê®Ö ÛúÖê ×ÛúÃÖ ¯ÖÏÛúÖ¸ü †ÖòŒÃÖß•Ö®Ö ´Öë ×®Ö´®ÖßÛéúŸÖ Ûú¸ü ¤êüŸÖÖ Æîü ? 2 
  
CFCs O
3
O
2
Earth
 
 (a) Expand CFC. 
 (b) How does it reduce ozone to oxygen ? 
57/3 4  
8. ´ÖÖ®Ö¾Ö •Ö®ÖÃÖÓܵÖÖ Ûêú ãÖÖµÖß †Öî¸ü ‘Ö™üŸÖß †ÖµÖã Ûêú ׯָîü×´Ö›üÖë Ûêú ®ÖÖ´ÖÖÓ×ÛúŸÖ †Ö¸êüÜÖ ²Ö®ÖÖ‡‹ … 2 
 Draw labelled diagrams of stable and declining age pyramids of human population.  
 
9.  áÖß ´Öë ÛúÖò¯ÖÔÃÖ »µÖæ×™üµÖ´Ö Ûúß ŒµÖÖ ×®ÖµÖ×ŸÖ ÆüÖêŸÖß Æîü µÖפü †Ó›üÖÞÖã (i) ×®ÖÂÖê×“ÖŸÖ ÆüÖê •ÖÖŸÖÖ Æîü, µÖÖ (ii) ×®ÖÂÖê×“ÖŸÖ ®ÖÆüà     
ÆüÖêŸÖÖ ?    2 
†£Ö¾ÖÖ 
 ®Ö¸ü´Ö ®ÖÖ׸üµÖ»Ö Ûêú ¯ÖÖ®Öß †Öî¸ü ¯Ö׸ü¯ÖŒ¾Ö ®ÖÖ׸üµÖ»Ö Ûúß ´ÖÖê™üß, ÃÖ±êú¤ü ×ÝÖ¸üß ´Öë †ÓŸÖ¸ü ²ÖŸÖÖ‡‹ ŸÖ£ÖÖ ˆ®Ö´Öë ÝÖãÞÖÃÖæ¡Ö-ÃÖÓܵÖÖ ³Öß 
²ÖŸÖÖ‡‹ …  
 What happens to corpus luteum in human female if the ovum is (i) fertilized, (ii) not 
fertilized ? 
OR 
 Write the difference between the tender coconut water and the thick, white kernel of a 
mature coconut and their ploidy. 
 
10. ¯ÖÏ£Ö´Ö ´ÖÖ®Ö¾Ö-•ÖîÃÖê ÆüÖê´Öê×®Ö›ü ÛúÖ ®ÖÖ´Ö ×»Ö×ÜÖ‹ … ˆÃÖÛúß ÜÖÖª-¯ÖϾÖé×¢Ö †Öî¸ü ´Ö×ßÖÂÛú-¬ÖÖ׸üŸÖÖ ²ÖŸÖÖ‡‹ … 2 
 Name the first human like hominid. Mention his food habit and brain capacity. 
 
ÜÖÞ›ü – C  
SECTION – C 
11.  (a) ÃÖã¤ü´Ö †Öî¸ü ¤ãü¤Ôü´Ö †²ÖãÔ¤üÖë (™ü¶æ´Ö¸üÖë) ´Öë †ÓŸÖ¸ü ²ÖŸÖÖ‡‹ … 
 (b) ÆüÖ»Ö Æüß •Ö®´Öê ²Ö““Öê Ûêú ×»Ö‹ ®Ö¾Ö¤ãüÝ¬Ö ŒµÖÖ ‹Ûú ¾Ö¸ü¤üÖ®Ö ÆüÖêŸÖÖ Æîü ?  3  
 (a) Differentiate between benign and malignant tumours. 
 (b) Why is colostrum a boon to the newborn baby ? 
 
12.  ¯ÖÖ׸ü×ãÖןÖÛú †®ÖãÛÎú´ÖÞÖ ŒµÖÖ ÆüÖêŸÖÖ Æîü ? †®ÖãÛÎú´ÖÞÖ Ûúß ¤ü¸ü ‹Ûú ®Ö‹-®Ö‹ ãÖÖ×¯ÖŸÖ ŸÖÖ»ÖÖ²Ö ´Öë †£Ö¾ÖÖ •ÖÓÝÖ»Ö Ûúß †ÖÝÖ ÃÖê 
®Ö™ü Æãü‹ ‹Ûú ¾Ö®Ö ´Öë ÃÖê ×ÛúÃÖ´Öë †×¬ÖÛú ŸÖß¾ÖÎ ÝÖ×ŸÖ ÃÖê ÆüÖêÝÖß †Öî¸ü ŒµÖÖë ÆüÖêÝÖß ? 3 
 What is ecological succession ? Where and why would the rate of succession be faster 
in newly created pond or a forest destroyed by a forest fire ? 
 
13.  µÖפü ×ÛúÃÖß ¯Ö׸ü¾ÖÖ¸ü ´Öë Æüß´ÖÖê×±ú×»ÖµÖÖ ®ÖÖ´ÖÛú ¸üÖêÝÖ ÛúÖ ‡×ŸÖÆüÖÃÖ Æîü, ŸÖ²Ö ˆÃÖ ¯Ö׸ü¾ÖÖ¸ü Ûúß ×áֵÖÖë Ûúß †¯ÖêõÖÖ ¯Öã¹ýÂÖÖë ´Öë 
Æüß´ÖÖê×±Ìú×»ÖµÖÖ ¸üÖêÝÖ ÆüÖê®Öê Ûêú †×¬ÖÛú ÃÖÓµÖÖêÝÖ ÆüÖêŸÖê Æïü … 3 
 (a) ‹êÃÖÖ ŒµÖÖë ÆüÖêŸÖÖ Æîü ? 
 (b) ‡ÃÖ ²Öß´ÖÖ¸üß Ûêú ¸üÖêÝÖ »ÖõÖÞÖ ²ÖŸÖÖ‡‹ … 
 If there is a history of haemophilia in the family, the chances of male members 
becoming haemophilic are more than that of the female. 
 (a) Why is it so ? 
 (b) Write the symptoms of the disease. 
Page 5


57/3 1 [P.T.O. 
 
 
 
 
¸üÖê»Ö ®ÖÓ. 
Roll No.  
 
 
 
•Öß¾Ö ×¾Ö–ÖÖ®Ö (ÃÖî¨üÖ×®ŸÖÛú) 
BIOLOGY (Theory)  
×®Ö¬ÖÖÔ׸üŸÖ ÃÖ´ÖµÖ  :    3 ‘ÖÓ™êü ] [ †×¬ÖÛúŸÖ´Ö †ÓÛú  : 70 
Time allowed : 3 hours ] [ Maximum Marks : 70 
 
ÃÖÖ´ÖÖ®µÖ ×®Ö¤ìü¿Ö    : : : :   
    (i) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¯ÖÖÑ“Ö ÜÖÞ›üÖë ´Öë 26 ¯ÖÏ¿®Ö פü‹ ÝÖ‹ Æïü … ÃÖ³Öß ¯ÖÏ¿®Ö †×®Ö¾ÖÖµÖÔ Æïü … 
 (ii) ÜÖÞ›ü – A ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 1 ÃÖê 5 †×ŸÖ »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 1 †ÓÛú ÛúÖ Æîü …  
 (iii) ÜÖÞ›ü – B ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 6 ÃÖê 10 »Ö‘Öã-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö I ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 2 †ÓÛúÖë ÛúÖ Æîü …  
 (iv) ÜÖÞ›ü – C ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 11 ÃÖê 22 »Ö‘Öã-ˆ¢Ö¸üßµÖü ¯ÖÏ¿®Ö II ¯ÖÏÛúÖ¸ü Ûêú Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 3 †ÓÛúÖë ÛúÖ Æîü …  
 (v) ÜÖÞ›ü – D ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 23 ´Öæ»µÖ †Ö¬ÖÖ׸üŸÖ ¯ÖÏ¿®Ö 4 †ÓÛúÖë ÛúÖ Æîü …  
 (vi) ÜÖÞ›ü – E ´Öë ¯ÖÏ¿®Ö ÃÖÓܵÖÖ 24 ÃÖê 26 ¤üß‘ÖÔ-ˆ¢Ö¸üßµÖ ¯ÖÏ¿®Ö Æïü, ¯ÖÏŸµÖêÛú ¯ÖÏ¿®Ö 5 †ÓÛúÖë ÛúÖ Æîü …  
 (vii) ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ÃÖ´ÖÝÖÏ ¯Ö¸ü ÛúÖê‡Ô ×¾ÖÛú»¯Ö ®ÖÆüà Æîü, ×±ú¸ü ³Öß 2 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë, 3 †ÓÛúÖë ¾ÖÖ»Öê ‹Ûú ¯ÖÏ¿®Ö ´Öë 
†Öî¸ü 5 †ÓÛúÖë ¾ÖÖ»Öê ÃÖ³Ößú ŸÖß®ÖÖë ¯ÖÏ¿®ÖÖë ´Öë ³Öߟָüß “ÖµÖ®Ö-×¾ÖÛú»¯Ö פü‹ ÝÖ‹ Æïü … ¯ÖÏŸµÖêÛú ¯Ö¸üßõÖÖ£Öá ÛúÖê ‹êÃÖê ¯ÖÏ¿®ÖÖë 
Ûêú ¤üÖê ×¾ÖÛú»¯ÖÖë ´Öë ÃÖê ÛúÖê‡Ô ‹Ûú ¯ÖÏ¿®Ö Æü»Ö Ûú¸ü®ÖÖ Æîü …  
 Series : SSO/C 
57/3
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ´ÖãצüŸÖ ¯Öéšü 8 Æïü … 
• ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë ¤üÖ×Æü®Öê ÆüÖ£Ö Ûúß †Öê¸ü פü‹ ÝÖ‹ ÛúÖê›ü ®Ö´²Ö¸ü ÛúÖê ”ûÖ¡Ö ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü ¯Ö¸ü ×»ÖÜÖë …  
• Ûéú¯ÖµÖÖ •ÖÖÑ“Ö Ûú¸ü »Öë ×Ûú ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ´Öë 26 ¯ÖÏ¿®Ö Æïü …  
• Ûéú¯ÖµÖÖ ¯ÖÏ¿®Ö ÛúÖ ˆ¢Ö¸ü ×»ÖÜÖ®ÖÖ ¿Öãºþ Ûú¸ü®Öê ÃÖê ¯ÖÆü»Öê, ¯ÖÏ¿®Ö ÛúÖ ÛÎú´ÖÖÓÛú †¾Ö¿µÖ ×»ÖÜÖë …  
• ‡ÃÖ ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌü®Öê Ûêú ×»Ö‹ 15 ×´Ö®Ö™ü ÛúÖ ÃÖ´ÖµÖ ×¤üµÖÖ ÝÖµÖÖ Æîü … ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖ ×¾ÖŸÖ¸üÞÖ ¯Öæ¾ÖÖÔÆËü®Ö ´Öë 10.15 ²Ö•Öê 
×ÛúµÖÖ •ÖÖµÖêÝÖÖ … 10.15 ²Ö•Öê ÃÖê 10.30 ²Ö•Öê ŸÖÛú ”ûÖ¡Ö Ûêú¾Ö»Ö ¯ÖÏ¿®Ö-¯Ö¡Ö ÛúÖê ¯ÖœÌëüÝÖê †Öî¸ü ‡ÃÖ †¾Ö×¬Ö Ûêú ¤üÖî¸üÖ®Ö ¾Öê 
ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ ¯Ö¸ü ÛúÖê‡Ô ˆ¢Ö¸ü ®ÖÆüà ×»ÖÜÖëÝÖê …  
• Please check that this question paper contains 8 printed pages. 
• Code number given on the right hand side of the question paper should be written on the 
title page of the answer-book by the candidate. 
• Please check that this question paper contains 26 questions. 
• Please write down the Serial Number of the question before attempting it. 
• 15 minute time has been allotted to read this question paper. The question paper will be 
distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the 
question paper only and will not write any answer on the answer-book during this period. 
ÛúÖê›ü ®ÖÓ. 
Code No.  
    
¯Ö¸üßõÖÖ£Öá ÛúÖê›ü ÛúÖê ˆ¢Ö¸ü-¯Öã×ßÖÛúÖ Ûêú ´ÖãÜÖ-¯Öéšü 
¯Ö¸ü †¾Ö¿µÖ ×»ÖÜÖë … 
Candidates must write the Code on 
the title page of the answer-book. 
 
SET – 3 
57/3 2  
General Instructions :   
 (i) There are a total of 26 questions and five sections in the question paper.                     
All questions are compulsory. 
 (ii) Section A contains questions number 1 to 5, Very Short Answer type questions of       
1 mark each. 
 (iii) Section B contains questions number 6 to 10, Short Answer type I questions of         
2 marks each. 
 (iv) Section C contains questions number 11 to 22, Short Answer type II questions of             
3 marks each. 
 (v) Section D contains question number 23, Value Based Question of 4 marks. 
 (vi) Section E contains questions number 24 to 26, Long Answer type questions of         
5 marks each. 
 (vii) There is no overall choice in the question paper, however, an internal choice is 
provided in one question of 2 marks, one question of 3 marks and all the three 
questions of 5 marks. In these questions, an examinee is to attempt any one of the 
two given alternatives. 
 
ÜÖÞ›ü – A 
SECTION – A 
1. ×ÛúÃÖ †Ö¬ÖÖ¸ü ¯Ö¸ü ´ÖÖ®Ö¾Ö Ÿ¾Ö“ÖÖ ÛúÖ ¸ÓüÝÖ †®ÖêÛú•Öß®Öß ´ÖÖ®ÖÖ •ÖÖŸÖÖ Æîü ? 1 
 On what basis is the skin colour in humans considered polygenic ? 
 
2. ¤æü¬Ö ÛúÖê •Ö´ÖÖ®Öê (¤üÆüß ²Ö®ÖÖ®Öê) Ûêú †×ŸÖ׸üŒŸÖ »Öî׌™üÛú †´»Ö ²Öüß׸üµÖÖ Æü´ÖÖ¸êü ×»Ö‹ ŒµÖÖë »ÖÖ³ÖÛúÖ¸üß ÆüÖêŸÖê Æïü ? 1 
 How is lactic acid bacteria beneficial to us other than helping in curdling the milk ? 
 
3. ³ÖÖ¸üŸÖ¾ÖÂÖÔ Ûêú ¯Ö׿“Ö´Öß ‘ÖÖ™üÖë ÛúÖê •Öî¾Ö ÆüÖò™ü-ïÖÖò™ü ŒµÖÖë ‘ÖÖê×ÂÖŸÖ ×ÛúµÖÖ ÝÖµÖÖ Æîü ? 1 
 Why Western Ghats in India have been declared as biological hot-spots ? 
 
4.  
 µÖÆüÖÑ ×¤ü‹ ÝÖ‹ ×“Ö¡Ö ÛúÖê ¯ÖÆü“ÖÖ×®Ö‹ ŸÖ£ÖÖ ˆÃÖ ÛúÖ×µÖÛú ³ÖÖÝÖ Ûúß “Ö“ÖÖÔ Ûúßו֋ •ÖÖê ˆÃÖê •Ö®Ö®Ö ´Öë ´Ö¤ü¤ü Ûú¸üŸÖÖ Æîü … 1 
57/3 3 [P.T.O. 
 Identify the picture and mention the vegetative part that helps it to propagate. 
 
 
5.  Œ»ÖÖ‡®Öê±Ìêú»™ü¸ü ØÃÖ›ÒüÖê´Ö ÃÖê ÝÖÏÃŸÖ ¾µÖ׌ŸÖµÖÖë ´Öë ¯ÖÖ‹ •ÖÖ®Öê ¾ÖÖ»Öê ÛÎúÖê´ÖÖêÃÖÖê´Öß (ÝÖãÞÖÃÖæ¡Öß) ¯ÖϳÖÖ¾Ö ²ÖŸÖÖ‡‹ … 1 
 Write the chromosomal defect in individuals affected with Klinefelter’s syndrome. 
 
ÜÖÞ›ü – B  
SECTION – B 
6.  ×®Ö´®Ö×»Ö×ÜÖŸÖ Ûêú ÛúÖµÖÔ ²ÖŸÖÖ‡‹ : 2 
 (a) cry 1AC •Öß®Ö  
 (b) RNA ¾µÖןÖÛú¸üÞÖ (RNAi) 
 Write the functions of  
 (a) cry 1AC gene 
 (b) RNA interference (RNAi) 
 
7.     
 (a) CFC ÛúÖ ¯Öæ¸üÖ ®ÖÖ´Ö ×»Ö×ÜÖ‹ … 
 (b) µÖÆü †Öê•ÖÌÖê®Ö ÛúÖê ×ÛúÃÖ ¯ÖÏÛúÖ¸ü †ÖòŒÃÖß•Ö®Ö ´Öë ×®Ö´®ÖßÛéúŸÖ Ûú¸ü ¤êüŸÖÖ Æîü ? 2 
  
CFCs O
3
O
2
Earth
 
 (a) Expand CFC. 
 (b) How does it reduce ozone to oxygen ? 
57/3 4  
8. ´ÖÖ®Ö¾Ö •Ö®ÖÃÖÓܵÖÖ Ûêú ãÖÖµÖß †Öî¸ü ‘Ö™üŸÖß †ÖµÖã Ûêú ׯָîü×´Ö›üÖë Ûêú ®ÖÖ´ÖÖÓ×ÛúŸÖ †Ö¸êüÜÖ ²Ö®ÖÖ‡‹ … 2 
 Draw labelled diagrams of stable and declining age pyramids of human population.  
 
9.  áÖß ´Öë ÛúÖò¯ÖÔÃÖ »µÖæ×™üµÖ´Ö Ûúß ŒµÖÖ ×®ÖµÖ×ŸÖ ÆüÖêŸÖß Æîü µÖפü †Ó›üÖÞÖã (i) ×®ÖÂÖê×“ÖŸÖ ÆüÖê •ÖÖŸÖÖ Æîü, µÖÖ (ii) ×®ÖÂÖê×“ÖŸÖ ®ÖÆüà     
ÆüÖêŸÖÖ ?    2 
†£Ö¾ÖÖ 
 ®Ö¸ü´Ö ®ÖÖ׸üµÖ»Ö Ûêú ¯ÖÖ®Öß †Öî¸ü ¯Ö׸ü¯ÖŒ¾Ö ®ÖÖ׸üµÖ»Ö Ûúß ´ÖÖê™üß, ÃÖ±êú¤ü ×ÝÖ¸üß ´Öë †ÓŸÖ¸ü ²ÖŸÖÖ‡‹ ŸÖ£ÖÖ ˆ®Ö´Öë ÝÖãÞÖÃÖæ¡Ö-ÃÖÓܵÖÖ ³Öß 
²ÖŸÖÖ‡‹ …  
 What happens to corpus luteum in human female if the ovum is (i) fertilized, (ii) not 
fertilized ? 
OR 
 Write the difference between the tender coconut water and the thick, white kernel of a 
mature coconut and their ploidy. 
 
10. ¯ÖÏ£Ö´Ö ´ÖÖ®Ö¾Ö-•ÖîÃÖê ÆüÖê´Öê×®Ö›ü ÛúÖ ®ÖÖ´Ö ×»Ö×ÜÖ‹ … ˆÃÖÛúß ÜÖÖª-¯ÖϾÖé×¢Ö †Öî¸ü ´Ö×ßÖÂÛú-¬ÖÖ׸üŸÖÖ ²ÖŸÖÖ‡‹ … 2 
 Name the first human like hominid. Mention his food habit and brain capacity. 
 
ÜÖÞ›ü – C  
SECTION – C 
11.  (a) ÃÖã¤ü´Ö †Öî¸ü ¤ãü¤Ôü´Ö †²ÖãÔ¤üÖë (™ü¶æ´Ö¸üÖë) ´Öë †ÓŸÖ¸ü ²ÖŸÖÖ‡‹ … 
 (b) ÆüÖ»Ö Æüß •Ö®´Öê ²Ö““Öê Ûêú ×»Ö‹ ®Ö¾Ö¤ãüÝ¬Ö ŒµÖÖ ‹Ûú ¾Ö¸ü¤üÖ®Ö ÆüÖêŸÖÖ Æîü ?  3  
 (a) Differentiate between benign and malignant tumours. 
 (b) Why is colostrum a boon to the newborn baby ? 
 
12.  ¯ÖÖ׸ü×ãÖןÖÛú †®ÖãÛÎú´ÖÞÖ ŒµÖÖ ÆüÖêŸÖÖ Æîü ? †®ÖãÛÎú´ÖÞÖ Ûúß ¤ü¸ü ‹Ûú ®Ö‹-®Ö‹ ãÖÖ×¯ÖŸÖ ŸÖÖ»ÖÖ²Ö ´Öë †£Ö¾ÖÖ •ÖÓÝÖ»Ö Ûúß †ÖÝÖ ÃÖê 
®Ö™ü Æãü‹ ‹Ûú ¾Ö®Ö ´Öë ÃÖê ×ÛúÃÖ´Öë †×¬ÖÛú ŸÖß¾ÖÎ ÝÖ×ŸÖ ÃÖê ÆüÖêÝÖß †Öî¸ü ŒµÖÖë ÆüÖêÝÖß ? 3 
 What is ecological succession ? Where and why would the rate of succession be faster 
in newly created pond or a forest destroyed by a forest fire ? 
 
13.  µÖפü ×ÛúÃÖß ¯Ö׸ü¾ÖÖ¸ü ´Öë Æüß´ÖÖê×±ú×»ÖµÖÖ ®ÖÖ´ÖÛú ¸üÖêÝÖ ÛúÖ ‡×ŸÖÆüÖÃÖ Æîü, ŸÖ²Ö ˆÃÖ ¯Ö׸ü¾ÖÖ¸ü Ûúß ×áֵÖÖë Ûúß †¯ÖêõÖÖ ¯Öã¹ýÂÖÖë ´Öë 
Æüß´ÖÖê×±Ìú×»ÖµÖÖ ¸üÖêÝÖ ÆüÖê®Öê Ûêú †×¬ÖÛú ÃÖÓµÖÖêÝÖ ÆüÖêŸÖê Æïü … 3 
 (a) ‹êÃÖÖ ŒµÖÖë ÆüÖêŸÖÖ Æîü ? 
 (b) ‡ÃÖ ²Öß´ÖÖ¸üß Ûêú ¸üÖêÝÖ »ÖõÖÞÖ ²ÖŸÖÖ‡‹ … 
 If there is a history of haemophilia in the family, the chances of male members 
becoming haemophilic are more than that of the female. 
 (a) Why is it so ? 
 (b) Write the symptoms of the disease. 
57/3 5 [P.T.O. 
14.  (a) ‹ŒÃÖÖò®ÖÖë †Öî¸ü ‡Ó™ÒüÖÑ®ÖÖë ´Öë †ÓŸÖ¸ü ²ÖŸÖÖ‡‹ … 
 (b) ¯»ÖÖוûÌ´Ö›ü ŒµÖÖ ÆüÖêŸÖÖ Æîü ? ‡ÃÖÛúÖ “ÖµÖ®Ö ²Öü¸ü Ûúß ³ÖÖÑ×ŸÖ ŒµÖÖë ×ÛúµÖÖ •ÖÖŸÖÖ Æîü ?  3 
 (a) Differentiate between exons and introns. 
 (b) What is a plasmid ? Why is it selected as a vector ? 
 
15.  •Öß¾ÖÖ¿´ÖÖë ÛúÖ †¬µÖµÖ®Ö ×¾ÖÛúÖÃÖ ÛúÖ ×ÛúÃÖ ¯ÖÏÛúÖ¸ü ÃÖ´Ö£ÖÔ®Ö Ûú¸üŸÖÖ Æîü ? ÃÖ´Ö—ÖÖ‡‹ …  3 
†£Ö¾ÖÖ 
 ÆüÖ›üá ¾ÖÖ‡®Ö²ÖÝÖÔ ÛúÖ ÃÖÖ´µÖ †¾ÖãÖÖ ÛúÖ ×®ÖµÖ´Ö ×ÛúÃÖ ²ÖÖŸÖ ÛúÖ ÃÖÓÛêúŸÖ Ûú¸üŸÖÖ Æîü ? ˆ®Ö ×Ûú®Æüà ¤üÖê ÛúÖ¸üÛúÖë Ûêú ®ÖÖ´Ö 
²ÖŸÖÖ‡‹ •ÖÖê ÃÖÖ´µÖŸÖÖ ´Öë ¯Ö׸ü¾ÖŸÖÔ®Ö »ÖÖ ÃÖÛúŸÖê Æïü … ‡ÃÖ ¯ÖÏÛúÖ¸ü Ûêú ¯Ö׸ü¾ÖŸÖÔ®Ö †Ö®Öê ÃÖê ŒµÖÖ ‘Ö™ü®ÖÖ ÆüÖê ÃÖÛúŸÖß Æîü ? 
 How does the study of fossils support evolution ? Explain. 
OR 
 What does Hardy-Weinberg Principle of equilibrium indicate ? List any two factors that 
could alter the equilibrium. What would such an alteration lead to ? 
 
16. ¯»ÖÖ•´ÖÖê×›üµÖ´Ö ×ÛúÃÖ †¾ÖãÖÖ ¯Ö¸ü ´ÖÖ®Ö¾Ö ¿Ö¸ü߸ü Ûêú ³Öߟָü ¯ÖϾÖê¿Ö Ûú¸üŸÖÖ Æîü … ´ÖÖ®Ö¾Ö ¿Ö¸ü߸ü ´Öë ˆÃÖÛêú •Öß¾Ö®Ö-“ÖÛÎú Ûúß 
×¾Ö׳֮®Ö †¾ÖãÖÖ†Öë ÛúÖ ¾ÖÞÖÔ®Ö Ûúßו֋ … 3 
 At what stage does Plasmodium gain entry into the human body ? Write the different 
stages of its life cycle in the human body.  
 
17. Œ»ÖÖêØ®ÖÝÖ ¾Öꌙü¸ü pBR 322  ´Öë ×®Ö´®Ö×»Ö×ÜÖŸÖ Ûêú ÛúÖµÖÔ ²ÖŸÖÖ‡‹ : 3 
 (i) Ori, (ii) rop †Öî¸ü (iii) Hind III Ã£Ö»Ö 
 State the functions of the following in the cloning vector pBR322 : 
 (i) Ori, (ii) rop, and (iii) Hind III sites 
 
18.  ˆ““Ö ˆŸ¯ÖÖ¤ü®Ö Ûú¸ü®Öê ¾ÖÖ»Öß ÝÖÖµÖ ÜÖÖª-¾Öéרü ÛúÖ ‹Ûú ˆ¢Ö´Ö Æü»Ö Æîü … MOET ¯ÖÏÖîªÖê×ÝÖÛúß ÃÖê ÝÖÖê¾ÖéÓ¤ü Ûúß ¾Öéרü ´Öë ×ÛúÃÖ 
¯ÖÏÛúÖ¸ü ÃÖÆüÖµÖŸÖÖ ×´Ö»ÖŸÖß Æîü ? 3 
 High yielding cattle is a good solution for food enhancement. How does the MOET 
technology help to increase the herd size ? 
 
19.  †¯Ö®Öê †ÖŸÖÔ¾Ö-“ÖÛÎú Ûêú ¤üÖî¸üÖ®Ö ÃÖÖ´ÖÖ®µÖ áÖß ´Öë ×®Ö´®Ö×»Ö×ÜÖŸÖ ×¤ü®ÖÖë ´Öë ÆüÖê®Öê ¾ÖÖ»Öß ‘Ö™ü®ÖÖ†Öë Ûúß ¾µÖÖܵÖÖ Ûúßו֋ : 3 
 (a) †Öšü¾Öë פü®Ö ÃÖê »ÖêÛú¸ü ²ÖÖ¸üÆü¾Öë פü®Ö ŸÖÛú ׯ֙ËüµÖæ™ü¸üß ÆüÖò´ÖÖì®Ö ÛúÖ ÃŸÖ¸ü … 
 (b) ŸÖê¸üÆü¾Öë פü®Ö ÃÖê »ÖêÛú¸ü ¯ÖÓ¦üÆü¾Öë פü®Ö ŸÖÛú ÝÖ³ÖÖÔ¿ÖµÖ ´Öë ÆüÖê®Öê ¾ÖÖ»Öß ‘Ö™ü®ÖÖ‹Ñ … 
 (c) ÃÖÖê»ÖÆü¾Öë פü®Ö ÃÖê »ÖêÛú¸ü ŸÖê‡ÔÃÖ¾Öë פü®Ö ŸÖÛú †Ó›üÖ¿ÖµÖ ´Öë ÆüÖê®Öê ¾ÖÖ»Öß ‘Ö™ü®ÖÖ‹Ñ … 
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FAQs on Past Year Paper - Biology (Set - 3), Delhi, 2015, Class 12, Biology - Additional Study Material for NEET

1. What is the significance of the NEET exam in Biology?
Ans. The NEET exam in Biology is significant as it is a national level entrance exam conducted for admission to medical and dental courses in India. It is important for students aspiring to pursue a career in the field of medicine as it serves as a qualifying exam for various medical colleges and universities.
2. How can I prepare effectively for the NEET Biology exam?
Ans. To prepare effectively for the NEET Biology exam, students should focus on understanding the concepts thoroughly. They should make a study schedule, revise regularly, and solve previous year question papers and sample papers. Additionally, referring to standard textbooks, attending coaching classes, and seeking guidance from teachers or mentors can also be helpful in preparation.
3. What are some important topics to study for the NEET Biology exam?
Ans. Some important topics to study for the NEET Biology exam include Cell Structure and Function, Biological Classification, Genetics and Evolution, Human Physiology, Plant Physiology, Ecology, and Biotechnology. These topics cover a wide range of concepts and are frequently asked in the exam.
4. How can I improve my time management during the NEET Biology exam?
Ans. To improve time management during the NEET Biology exam, students should practice solving mock tests and previous year question papers within the given time limit. They should also identify their strengths and weaknesses and allocate time accordingly for each section. Regular practice and self-assessment can help in improving speed and accuracy.
5. Are there any specific tips to score well in the NEET Biology exam?
Ans. Yes, some tips to score well in the NEET Biology exam include understanding the exam pattern and syllabus thoroughly, practicing diagrams and labeling, using mnemonics and memory techniques to remember complex processes, and staying updated with current developments in the field of Biology. Additionally, maintaining a positive mindset, staying calm, and managing time effectively during the exam can also contribute to better performance.
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