Evaluation · Q18
Q.Consider the following statement(s)
i) In Protandrous flowers pistil matures earlier
ii) In Protogynous flowers pistil matures earlier
iii) Herkogamy is noticed in unisexual flowers
iv) Distyly is present in Primula
a) i and ii are correct
b) ii and iv are correct
c) ii and iii are correct
d) i and iv are correct
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Start your 14-day free trial to unlock the full solution →Step 1. Statement (i) is false: in protandrous flowers the STAMENS mature earlier, not the pistil - protandry means 'early male.'
Step 2. Statement (ii) is true: in protogynous flowers the stigma (pistil) does mature earlier than the stamens, as in Scrophularia nodosa.
Step 3. Statement (iii) is false: herkogamy is a mechanism seen in BISEXUAL flowers (e.g. Gloriosa, Hibiscus), where it physically keeps the stamens and stigma of one flower apart; it is not relevant to unisexual flowers, which are already incapable of self-pollination. …
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