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Mendel obtained wrinkled seeds in pea du...

Mendel obtained wrinkled seeds in pea due to deposition of sugars instead of starch. It was due to which enzyme :-

A

amylase

B

invertase

C

diastase

D

absence of starch-branching enzyme

Text Solution

Verified by Experts

The correct Answer is:
D
In round seeds `(R R//Rr)` Starch-Branching Enzyme-1 (SBE-1) is found but is absent from wrinkled seeds. In rr seeds, a small DNA segment interferes with SBE-1 activity so that starch is not formed and free sugar gets accumulated. Resulting high osmotic pressure in rr seeds leads to shrinkage and wrinkling.
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