Which of the following does NOT directly enable photosynthesis to take place in a leaf?

a) guard cells.
b) stoma.
c) phloem.
d) xylem.


Ans: d) xylem.

Biology & Microbiology

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What will be an ideal response?

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What will be an ideal response?

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Which of the following is not typically a modification of histones?

A. adenylation B. phosphorylation C. methylation D. acetylation E. adenylation and phosphorylation

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How many "turns" are present in insulin chain B?

a. 1 b. 2 c. 3 d. 4

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