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How many histogen are present in Casuarina root apex
- a)four
- b)one
- c)two
- d)three
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
How many histogen are present in Casuarina root apexa)fourb)onec)twod)...
According to histogen theory, as proposed by Hanstein, the root and shoot apices have three distinct meristematic regions called as histogens. These are namely, dermatogens, periblem, and plerome. The dermatogens make uniseriate epidermis by anticlinal divisions, periblem forms cortex and plerome serve as the progenitor of stele (pericycle, vascular bundles, pith rays or medullary rays and pith). Casuarina is an exception to this theory and has two histogens due to the presence of root cap position of root apex is sub terminal. Hence the maximum growth of root takes place behind the apex.
So, the correct answer is 'Two'
So, the correct answer is 'Two'
This question is part of UPSC exam. View all NEET courses
Most Upvoted Answer
How many histogen are present in Casuarina root apexa)fourb)onec)twod)...
Three Histogen are present in casuarina. Dermatogen, plerome ,periblem.
Community Answer
How many histogen are present in Casuarina root apexa)fourb)onec)twod)...
Three histogens are present in. casuarina namely dermatogen, plerome and periblem
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How many histogen are present in Casuarina root apexa)fourb)onec)twod)threeCorrect answer is option 'C'. Can you explain this answer?
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How many histogen are present in Casuarina root apexa)fourb)onec)twod)threeCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about How many histogen are present in Casuarina root apexa)fourb)onec)twod)threeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many histogen are present in Casuarina root apexa)fourb)onec)twod)threeCorrect answer is option 'C'. Can you explain this answer?.
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