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By Expert Faculty of Sri Chaitanya
a
Cork is formed from cork cambium due to differentiation
b
Cytokinins are formed from tryptophan.
c
During embryogeny, zygote develops into proembryo due to geometric growth
d
Para-ascorbic acid is growth promoter.
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detailed solution

Correct option is C

Cork is formed from cork cambium due to redifferentiation. Para-ascorbic acid is a growth inhibitor and promotes seed dormancy. Cytokinins are derivatives of adenine but not formed from tryptophan. Auxins are formed from tryptophan. During early embryogeny, the growth is geometric till the formation of proembryo.

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