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Q.

Identify the correct statement(s) w.r.t. self-Incompatibility
(a) It is a genetic mechanism.
(b) It prevents self-pollen (from the same flower or other flower of the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil.
(c) It can also be called as Self sterility
(d) It is only found in cleistogamous flowers

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a

a, b and c are correct

b

a, b, c and d are correct

c

b, c and d are correct

d

a, c and d are correct

answer is A.

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Detailed Solution

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Self-incompatibility or self-sterility is a genetic mechanism. It prevents self-pollen (from the same flower or other flower of the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil. But it is never found in cleistogamous flowers as they only self-pollinate.

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Identify the correct statement(s) w.r.t. self-Incompatibility(a) It is a genetic mechanism.(b) It prevents self-pollen (from the same flower or other flower of the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil.(c) It can also be called as Self sterility(d) It is only found in cleistogamous flowers