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 Page 1


 
 .57/1/1 1 P.T.O.    
narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð 
>na Adí` {bIo§ & 
Candidates must write the Code on the 
title page of the answer-book. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 15 h¢ & 
(I) Please check that this question 
paper contains 15 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) 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. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>27 àíZ h¢ & 
(III) Please check that this question 
paper contains 27 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 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. 
Ord {dkmZ (g¡ÕmpÝVH$)  
BIOLOGY (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
57/1/1
 
Page 2


 
 .57/1/1 1 P.T.O.    
narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð 
>na Adí` {bIo§ & 
Candidates must write the Code on the 
title page of the answer-book. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 15 h¢ & 
(I) Please check that this question 
paper contains 15 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) 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. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>27 àíZ h¢ & 
(III) Please check that this question 
paper contains 27 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 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. 
Ord {dkmZ (g¡ÕmpÝVH$)  
BIOLOGY (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
57/1/1
 
 
 .57/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE :  
(i) àíZ-nÌ nm±M IÊS>m| _§| {d^m{OV {H$`m J`m h¡ ? H$, I, J, K Am¡a L> &  
(ii) Bg àíZ-nÌ _| 27 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ & 
(iii) IÊS> H$ _| àíZ g§»`m 1 go 5 VH$ ~hþ{dH$ënr` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m h¡ & 
(iv) IÊS> I _| àíZ g§»`m 6 go 12 VH$ bKw-CÎmar` àH$ma-I Ho$ àíZ h¢, àË`oH$ àíZ 2 A§H$m| 
H$m h¡ & 
(v) IÊS> J _| àíZ g§»`m 13 go 21 VH$ bKw-CÎmar` àH$ma-II Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K _| àíZ g§»`m 22 go 24 VH$ bKw-CÎmar` àH$ma-III Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vii) IÊS> L> _| àíZ g§»`m 25 go 27 VH$ XrK©-CÎmar` àíZ h¢, àË`oH$ àíZ 5 A§H$m| H$m h¡ & 
(viii) CÎma g§{já VWm q~Xþdma hmoZo Mm{hE &  
(ix) Bg àíZ-nÌ _| g_J« na H$moB© {dH$ën Zht h¡ & VWm{n EH$-EH$ A§H$ dmbo Xmo àíZm| _|, 
Xmo-Xmo A§H$m| dmbo EH$ àíZ _§o, VrZ-VrZ A§H$m| dmbo Xmo àíZm| _§o Am¡a nm±M-nm±M A§H$m| 
dmbo VrZm| àíZm| _§o Am§V[aH$ {dH$ën {XE JE h¢ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m 
CÎma Xr{OE & 
(x) Ohm± Amdí`H$ hmo, dhm± gmµ\$-gwWam, AmZwnm{VH$ VWm g_w{MV Zm_m§{H$V {MÌ ~ZmBE & 
(xi) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
IÊS> H$ 
1. _ogëgZ d ñQ>mb Zo AnZo à`moJm| _| CsCl
2
 KZËd J«o{S>E|Q> _| AnHo$ÝÐrH$aU H$m Cn`moJ BÝh| 
n¥WH²$ H$aZo Ho$ {bE {H$`m :  1 
(A) Ama.EZ.E. go S>r.EZ.E. H$mo  
(B) àmoQ>rZ go S>r.EZ.E. H$mo  
(C) 
15
N-S>r.EZ.E. go gm_mÝ` S>r.EZ.E. AUwAm| H$mo  
(D) A§VaU Ama.EZ.E. go S>r.EZ.E. H$mo  
Page 3


 
 .57/1/1 1 P.T.O.    
narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð 
>na Adí` {bIo§ & 
Candidates must write the Code on the 
title page of the answer-book. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 15 h¢ & 
(I) Please check that this question 
paper contains 15 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) 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. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>27 àíZ h¢ & 
(III) Please check that this question 
paper contains 27 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 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. 
Ord {dkmZ (g¡ÕmpÝVH$)  
BIOLOGY (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
57/1/1
 
 
 .57/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE :  
(i) àíZ-nÌ nm±M IÊS>m| _§| {d^m{OV {H$`m J`m h¡ ? H$, I, J, K Am¡a L> &  
(ii) Bg àíZ-nÌ _| 27 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ & 
(iii) IÊS> H$ _| àíZ g§»`m 1 go 5 VH$ ~hþ{dH$ënr` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m h¡ & 
(iv) IÊS> I _| àíZ g§»`m 6 go 12 VH$ bKw-CÎmar` àH$ma-I Ho$ àíZ h¢, àË`oH$ àíZ 2 A§H$m| 
H$m h¡ & 
(v) IÊS> J _| àíZ g§»`m 13 go 21 VH$ bKw-CÎmar` àH$ma-II Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K _| àíZ g§»`m 22 go 24 VH$ bKw-CÎmar` àH$ma-III Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vii) IÊS> L> _| àíZ g§»`m 25 go 27 VH$ XrK©-CÎmar` àíZ h¢, àË`oH$ àíZ 5 A§H$m| H$m h¡ & 
(viii) CÎma g§{já VWm q~Xþdma hmoZo Mm{hE &  
(ix) Bg àíZ-nÌ _| g_J« na H$moB© {dH$ën Zht h¡ & VWm{n EH$-EH$ A§H$ dmbo Xmo àíZm| _|, 
Xmo-Xmo A§H$m| dmbo EH$ àíZ _§o, VrZ-VrZ A§H$m| dmbo Xmo àíZm| _§o Am¡a nm±M-nm±M A§H$m| 
dmbo VrZm| àíZm| _§o Am§V[aH$ {dH$ën {XE JE h¢ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m 
CÎma Xr{OE & 
(x) Ohm± Amdí`H$ hmo, dhm± gmµ\$-gwWam, AmZwnm{VH$ VWm g_w{MV Zm_m§{H$V {MÌ ~ZmBE & 
(xi) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
IÊS> H$ 
1. _ogëgZ d ñQ>mb Zo AnZo à`moJm| _| CsCl
2
 KZËd J«o{S>E|Q> _| AnHo$ÝÐrH$aU H$m Cn`moJ BÝh| 
n¥WH²$ H$aZo Ho$ {bE {H$`m :  1 
(A) Ama.EZ.E. go S>r.EZ.E. H$mo  
(B) àmoQ>rZ go S>r.EZ.E. H$mo  
(C) 
15
N-S>r.EZ.E. go gm_mÝ` S>r.EZ.E. AUwAm| H$mo  
(D) A§VaU Ama.EZ.E. go S>r.EZ.E. H$mo  
 
 .57/1/1 3 P.T.O.    
General Instructions :  
Read the following instructions very carefully and strictly follow them : 
(i) Question paper comprises five sections – A, B, C, D and E. 
(ii) There are 27 questions in the question paper. All questions are compulsory. 
(iii) Section A – Questions no. 1 to 5 are multiple choice questions, carrying  
1 mark each. 
(iv) Section B – Questions no. 6 to 12 are short-answer questions type-I, 
carrying 2 marks each. 
(v) Section C – Questions no. 13 to 21 are short-answer questions type-II, 
carrying 3 marks each. 
(vi) Section D – Questions no. 22 to 24 are short-answer questions type-III, 
carrying 3 marks each. 
(vii) Section E – Questions no. 25 to 27 are long-answer questions, carrying  
5 marks each. 
(viii) Answers should be brief and to the point.  
(ix) There is no overall choice in the question paper. However, an internal 
choice has been provided in two questions of 1 mark, one question of  
2 marks, two questions of 3 marks and three questions of 5 marks. Only 
one of the choices in such questions have to be attempted. 
(x) The diagrams drawn should be neat, proportionate and properly labelled, 
wherever necessary. 
(xi) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
SECTION A 
1. Meselson and Stahl carried out centrifugation in CsCl
2
 density gradient 
to separate :  1 
(A) DNA from RNA 
(B) DNA from protein 
(C) The normal DNA from 
15
N-DNA  
(D) DNA from tRNA 
Page 4


 
 .57/1/1 1 P.T.O.    
narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð 
>na Adí` {bIo§ & 
Candidates must write the Code on the 
title page of the answer-book. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 15 h¢ & 
(I) Please check that this question 
paper contains 15 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) 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. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>27 àíZ h¢ & 
(III) Please check that this question 
paper contains 27 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 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. 
Ord {dkmZ (g¡ÕmpÝVH$)  
BIOLOGY (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
57/1/1
 
 
 .57/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE :  
(i) àíZ-nÌ nm±M IÊS>m| _§| {d^m{OV {H$`m J`m h¡ ? H$, I, J, K Am¡a L> &  
(ii) Bg àíZ-nÌ _| 27 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ & 
(iii) IÊS> H$ _| àíZ g§»`m 1 go 5 VH$ ~hþ{dH$ënr` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m h¡ & 
(iv) IÊS> I _| àíZ g§»`m 6 go 12 VH$ bKw-CÎmar` àH$ma-I Ho$ àíZ h¢, àË`oH$ àíZ 2 A§H$m| 
H$m h¡ & 
(v) IÊS> J _| àíZ g§»`m 13 go 21 VH$ bKw-CÎmar` àH$ma-II Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K _| àíZ g§»`m 22 go 24 VH$ bKw-CÎmar` àH$ma-III Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vii) IÊS> L> _| àíZ g§»`m 25 go 27 VH$ XrK©-CÎmar` àíZ h¢, àË`oH$ àíZ 5 A§H$m| H$m h¡ & 
(viii) CÎma g§{já VWm q~Xþdma hmoZo Mm{hE &  
(ix) Bg àíZ-nÌ _| g_J« na H$moB© {dH$ën Zht h¡ & VWm{n EH$-EH$ A§H$ dmbo Xmo àíZm| _|, 
Xmo-Xmo A§H$m| dmbo EH$ àíZ _§o, VrZ-VrZ A§H$m| dmbo Xmo àíZm| _§o Am¡a nm±M-nm±M A§H$m| 
dmbo VrZm| àíZm| _§o Am§V[aH$ {dH$ën {XE JE h¢ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m 
CÎma Xr{OE & 
(x) Ohm± Amdí`H$ hmo, dhm± gmµ\$-gwWam, AmZwnm{VH$ VWm g_w{MV Zm_m§{H$V {MÌ ~ZmBE & 
(xi) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
IÊS> H$ 
1. _ogëgZ d ñQ>mb Zo AnZo à`moJm| _| CsCl
2
 KZËd J«o{S>E|Q> _| AnHo$ÝÐrH$aU H$m Cn`moJ BÝh| 
n¥WH²$ H$aZo Ho$ {bE {H$`m :  1 
(A) Ama.EZ.E. go S>r.EZ.E. H$mo  
(B) àmoQ>rZ go S>r.EZ.E. H$mo  
(C) 
15
N-S>r.EZ.E. go gm_mÝ` S>r.EZ.E. AUwAm| H$mo  
(D) A§VaU Ama.EZ.E. go S>r.EZ.E. H$mo  
 
 .57/1/1 3 P.T.O.    
General Instructions :  
Read the following instructions very carefully and strictly follow them : 
(i) Question paper comprises five sections – A, B, C, D and E. 
(ii) There are 27 questions in the question paper. All questions are compulsory. 
(iii) Section A – Questions no. 1 to 5 are multiple choice questions, carrying  
1 mark each. 
(iv) Section B – Questions no. 6 to 12 are short-answer questions type-I, 
carrying 2 marks each. 
(v) Section C – Questions no. 13 to 21 are short-answer questions type-II, 
carrying 3 marks each. 
(vi) Section D – Questions no. 22 to 24 are short-answer questions type-III, 
carrying 3 marks each. 
(vii) Section E – Questions no. 25 to 27 are long-answer questions, carrying  
5 marks each. 
(viii) Answers should be brief and to the point.  
(ix) There is no overall choice in the question paper. However, an internal 
choice has been provided in two questions of 1 mark, one question of  
2 marks, two questions of 3 marks and three questions of 5 marks. Only 
one of the choices in such questions have to be attempted. 
(x) The diagrams drawn should be neat, proportionate and properly labelled, 
wherever necessary. 
(xi) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
SECTION A 
1. Meselson and Stahl carried out centrifugation in CsCl
2
 density gradient 
to separate :  1 
(A) DNA from RNA 
(B) DNA from protein 
(C) The normal DNA from 
15
N-DNA  
(D) DNA from tRNA 
 
 .57/1/1 4 
2. ñdnamJU nyU©ê$noU gw{ZpíMV hmoVm h¡ `{X  1 
(A) nwîn {ÛqbJr (C^`qbJr) h¡ & 
(B) S>§R>b V§Vw H$s Anojm d{V©H$m b§~r hmoVr h¡ & 
(C) nwîn AZwÝ_rë` h¡ & 
(D) nwîn _| ñÌrHo$ga VWm nw§Ho$ga Ho$ n[anŠd hmoZo Ho$ g_` _| A§Va hmoVm h¡ & 
               AWdm 
 Bg Ord _| Mb ~rOmUw Ab¢{JH$ OZZ H$s OZZ BH$mB© h¡  1 
(A) Šb¡{_S>mo_moZmg 
(B) ñnmBamoJmBam 
(C) `rñQ> 
(D) amBµOmong 
3. {ZåZ{b{IV Ûmam gyú_àdY©Z {H$`m Om gH$Vm h¡ : 1 
(A) ñdnamJU 
(B) Ab¢{JH$ OZZ 
(C) D$VH$ g§dY©Z 
(D) H$m{`H$ àdY©Z 
  AWdm 
 agmoB`m| _| gm_mÝ`V… Cn`moJ {H$E OmZo dmbo gyú_Ord h¢  1 
(A) b¡ŠQ>mo~¡{gbg  VWm `rñQ>    
(B) n¡Zrgr{b`_  VWm `rñQ>  
(C) _mBH«$moñnmoam  VWm B©. H$mobmB© 
(D) amBµOmong  VWm b¡ŠQ>mo~¡{gbg  
4. gyú_Ordm| H$mo h_mao eara _| à{dîQ> hmoZo go amoH$Zo dmbm à_wI AdamoYH$ h¡  1 
(A) à{Vajr 
(B) d¥hV²^jH$mUw (_¡H«$mo\$mO)  
(C) EH$H|$ÐH$mUw (_moZmogmBQ²>g) 
(D) ËdMm  
5. {ZåZ{b{IV dmhH$ H$m Cn`moJ H$aHo$ gyÌH¥${_ {d{eîQ> OrZm| H$mo nanmofr V§~mHy$ Ho$ nm¡Yo _| 
à{dîQ> H$am`m J`m  1 
(A) pBR 322 
(B) ßb¡pµÁ_S>>  
(C) OrdmUw^moOr 
(D) EJ«mo~¡ŠQ>r[a`_  
Page 5


 
 .57/1/1 1 P.T.O.    
narjmWu H$moS >H$mo CÎma-nwpñVH$m Ho$ _wI-n¥ð 
>na Adí` {bIo§ & 
Candidates must write the Code on the 
title page of the answer-book. 
  H$moS> Z§.  
   
 
 
Code No. 
amob Z§. 
Roll No. 
 
 
 
 
ZmoQ> 
 NOTE 
(I) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _o§ _w{ÐV 
n¥ð> 15 h¢ & 
(I) Please check that this question 
paper contains 15 printed pages. 
(II) 
àíZ-nÌ _| Xm{hZo hmW H$s Amoa {XE JE H$moS 
>Zå~a H$mo N>mÌ CÎma-nwpñVH$m Ho$ _wI-n¥ð> na 
{bI| & 
(II) 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. 
(III) 
H¥$n`m Om±M H$a b| {H$ Bg àíZ-nÌ _|  
>27 àíZ h¢ & 
(III) Please check that this question 
paper contains 27 questions. 
(IV) 
H¥$n`m àíZ H$m CÎma {bIZm ewê$ H$aZo go 
nhbo, CÎma-nwpñVH$m _| àíZ H$m H«$_m§H$ 
Adí` {bI| & 
(IV) Please write down the Serial 
Number of the question in the 
answer-book before attempting it. 
(V) 
Bg  àíZ-nÌ  H$mo n‹T>Zo Ho$ {bE 15 {_ZQ >H$m 
g_` {X`m J`m h¡ &  àíZ-nÌ H$m {dVaU 
nydm©• _| 10.15 ~Oo {H$`m OmEJm &   
10.15 ~Oo go 10.30 ~Oo VH$ N>mÌ Ho$db 
àíZ-nÌ H$mo n‹T>|Jo Am¡a Bg Ad{Y Ho$ Xm¡amZ 
do CÎma-nwpñVH$m na H$moB© CÎma Zht {bI|Jo & 
(V) 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. 
Ord {dkmZ (g¡ÕmpÝVH$)  
BIOLOGY (Theory) 
{ZYm©[aV g_` : 3 KÊQ>o   A{YH$V_ A§H$ : 70 
Time allowed : 3 hours Maximum Marks : 70 
 
57/1/1
 
 
 .57/1/1 2 
gm_mÝ` {ZX}e : 
{ZåZ{b{IV {ZX}em| H$mo ~hþV gmdYmZr go n{‹T>E Am¡a CZH$m g™Vr go nmbZ H$s{OE :  
(i) àíZ-nÌ nm±M IÊS>m| _§| {d^m{OV {H$`m J`m h¡ ? H$, I, J, K Am¡a L> &  
(ii) Bg àíZ-nÌ _| 27 àíZ h¢ & g^r  àíZ A{Zdm`© h¢ & 
(iii) IÊS> H$ _| àíZ g§»`m 1 go 5 VH$ ~hþ{dH$ënr` àíZ h¢, àË`oH$ àíZ 1 A§H$ H$m h¡ & 
(iv) IÊS> I _| àíZ g§»`m 6 go 12 VH$ bKw-CÎmar` àH$ma-I Ho$ àíZ h¢, àË`oH$ àíZ 2 A§H$m| 
H$m h¡ & 
(v) IÊS> J _| àíZ g§»`m 13 go 21 VH$ bKw-CÎmar` àH$ma-II Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vi) IÊS> K _| àíZ g§»`m 22 go 24 VH$ bKw-CÎmar` àH$ma-III Ho$ àíZ h¢, àË`oH$ àíZ  
3 A§H$m| H$m h¡ & 
(vii) IÊS> L> _| àíZ g§»`m 25 go 27 VH$ XrK©-CÎmar` àíZ h¢, àË`oH$ àíZ 5 A§H$m| H$m h¡ & 
(viii) CÎma g§{já VWm q~Xþdma hmoZo Mm{hE &  
(ix) Bg àíZ-nÌ _| g_J« na H$moB© {dH$ën Zht h¡ & VWm{n EH$-EH$ A§H$ dmbo Xmo àíZm| _|, 
Xmo-Xmo A§H$m| dmbo EH$ àíZ _§o, VrZ-VrZ A§H$m| dmbo Xmo àíZm| _§o Am¡a nm±M-nm±M A§H$m| 
dmbo VrZm| àíZm| _§o Am§V[aH$ {dH$ën {XE JE h¢ & Eogo àíZm| _| Ho$db EH$ hr {dH$ën H$m 
CÎma Xr{OE & 
(x) Ohm± Amdí`H$ hmo, dhm± gmµ\$-gwWam, AmZwnm{VH$ VWm g_w{MV Zm_m§{H$V {MÌ ~ZmBE & 
(xi) BgHo$ A{V[aº$, Amdí`H$VmZwgma, àË`oH$ IÊS> Am¡a àíZ Ho$ gmW `Wmo{MV {ZX}e {XE JE 
h¢ & 
IÊS> H$ 
1. _ogëgZ d ñQ>mb Zo AnZo à`moJm| _| CsCl
2
 KZËd J«o{S>E|Q> _| AnHo$ÝÐrH$aU H$m Cn`moJ BÝh| 
n¥WH²$ H$aZo Ho$ {bE {H$`m :  1 
(A) Ama.EZ.E. go S>r.EZ.E. H$mo  
(B) àmoQ>rZ go S>r.EZ.E. H$mo  
(C) 
15
N-S>r.EZ.E. go gm_mÝ` S>r.EZ.E. AUwAm| H$mo  
(D) A§VaU Ama.EZ.E. go S>r.EZ.E. H$mo  
 
 .57/1/1 3 P.T.O.    
General Instructions :  
Read the following instructions very carefully and strictly follow them : 
(i) Question paper comprises five sections – A, B, C, D and E. 
(ii) There are 27 questions in the question paper. All questions are compulsory. 
(iii) Section A – Questions no. 1 to 5 are multiple choice questions, carrying  
1 mark each. 
(iv) Section B – Questions no. 6 to 12 are short-answer questions type-I, 
carrying 2 marks each. 
(v) Section C – Questions no. 13 to 21 are short-answer questions type-II, 
carrying 3 marks each. 
(vi) Section D – Questions no. 22 to 24 are short-answer questions type-III, 
carrying 3 marks each. 
(vii) Section E – Questions no. 25 to 27 are long-answer questions, carrying  
5 marks each. 
(viii) Answers should be brief and to the point.  
(ix) There is no overall choice in the question paper. However, an internal 
choice has been provided in two questions of 1 mark, one question of  
2 marks, two questions of 3 marks and three questions of 5 marks. Only 
one of the choices in such questions have to be attempted. 
(x) The diagrams drawn should be neat, proportionate and properly labelled, 
wherever necessary. 
(xi) In addition to this, separate instructions are given with each section and 
question, wherever necessary. 
SECTION A 
1. Meselson and Stahl carried out centrifugation in CsCl
2
 density gradient 
to separate :  1 
(A) DNA from RNA 
(B) DNA from protein 
(C) The normal DNA from 
15
N-DNA  
(D) DNA from tRNA 
 
 .57/1/1 4 
2. ñdnamJU nyU©ê$noU gw{ZpíMV hmoVm h¡ `{X  1 
(A) nwîn {ÛqbJr (C^`qbJr) h¡ & 
(B) S>§R>b V§Vw H$s Anojm d{V©H$m b§~r hmoVr h¡ & 
(C) nwîn AZwÝ_rë` h¡ & 
(D) nwîn _| ñÌrHo$ga VWm nw§Ho$ga Ho$ n[anŠd hmoZo Ho$ g_` _| A§Va hmoVm h¡ & 
               AWdm 
 Bg Ord _| Mb ~rOmUw Ab¢{JH$ OZZ H$s OZZ BH$mB© h¡  1 
(A) Šb¡{_S>mo_moZmg 
(B) ñnmBamoJmBam 
(C) `rñQ> 
(D) amBµOmong 
3. {ZåZ{b{IV Ûmam gyú_àdY©Z {H$`m Om gH$Vm h¡ : 1 
(A) ñdnamJU 
(B) Ab¢{JH$ OZZ 
(C) D$VH$ g§dY©Z 
(D) H$m{`H$ àdY©Z 
  AWdm 
 agmoB`m| _| gm_mÝ`V… Cn`moJ {H$E OmZo dmbo gyú_Ord h¢  1 
(A) b¡ŠQ>mo~¡{gbg  VWm `rñQ>    
(B) n¡Zrgr{b`_  VWm `rñQ>  
(C) _mBH«$moñnmoam  VWm B©. H$mobmB© 
(D) amBµOmong  VWm b¡ŠQ>mo~¡{gbg  
4. gyú_Ordm| H$mo h_mao eara _| à{dîQ> hmoZo go amoH$Zo dmbm à_wI AdamoYH$ h¡  1 
(A) à{Vajr 
(B) d¥hV²^jH$mUw (_¡H«$mo\$mO)  
(C) EH$H|$ÐH$mUw (_moZmogmBQ²>g) 
(D) ËdMm  
5. {ZåZ{b{IV dmhH$ H$m Cn`moJ H$aHo$ gyÌH¥${_ {d{eîQ> OrZm| H$mo nanmofr V§~mHy$ Ho$ nm¡Yo _| 
à{dîQ> H$am`m J`m  1 
(A) pBR 322 
(B) ßb¡pµÁ_S>>  
(C) OrdmUw^moOr 
(D) EJ«mo~¡ŠQ>r[a`_  
 
 .57/1/1 5 P.T.O.    
2. Self-pollination is fully ensured if  1 
(A) the flower is bisexual.  
(B) the style is longer than the filament.  
(C) the flower is cleistogamous.  
(D) the time of pistil and anther maturity is different.  
                            OR 
 Zoospores are the reproductive units to carry asexual reproduction in   1 
(A) Chlamydomonas  
(B) Spirogyra 
(C) Yeast 
(D) Rhizopus  
3. Micropropagation can be achieved by   1 
(A) Self-pollination 
(B) Asexual reproduction 
(C) Tissue culture 
(D) Vegetative propagation  
                OR 
 The microbes commonly used in kitchens are  1 
(A) Lactobacillus and Yeast 
(B) Penicillium and Yeast 
(C) Microspora and E. coli 
(D) Rhizopus and Lactobacillus  
4. The main barrier that prevents the entry of micro-organisms into our 
body is   1 
(A) Antibodies  
(B) Macrophages  
(C) Monocytes 
(D) Skin 
5. Nematode specific genes were introduced into the tobacco host plant using 
a vector   1 
(A) pBR 322 
(B) Plasmid 
(C) Bacteriophage 
(D) Agrobacterium

	Biology Class 12 59 videos\|290 docs\|168 tests

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