NEET Biology question
Refer to the given dichotomous key. I. (a) Many-seeded, dry, simple, dehiscent fruit → go to II (b) Single-seeded, dry, simple, indehiscent fruit → go to III II. (a) Develops from a monocarpellary, superior, unilocular ovary with marginal placentation → **P** (b) Develops from a bicarpellary, superior, bilocular ovary with parietal placentation → **Q** III. (a) Has a winged pericarp → **R** (b) Pericarp is completely fused with the seed coat → **S**
Identify P, Q, R and S and select the correct option.
Solution
A legume such as *Abrus* develops from a monocarpellary, superior, unilocular ovary with marginal placentation and is a many-seeded dehiscent fruit (P). Mustard develops a dehiscent siliqua from a bicarpellary, bilocular ovary with parietal placentation (Q). A
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