Question:

Identify the labelled parts P, Q, R, and S in the stages of a dicot embryo shown in the diagram.

Choose the option that indicates correct labelling of 'P', 'Q', 'R', and 'S' of embryo in different stages of its development.

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In dicot embryo: Zygote → Suspensor → Cotyledons → Radicle (root tip).
  • P-Egg, Q-Suspenso, R-Radicle, S-Cotyledons
  • P-Zygote, Q-Suspenso, R-Cotyledons, S-Plumule
  • P-Egg, Q-Radicle, R-Suspenso, S-Cotyledons
  • P-Zygote, Q-Suspenso, R-Cotyledons, S-Radicle
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The Correct Option is D

Solution and Explanation

Step 1: P is the fertilized egg or zygote.
Step 2: Q is the suspensor that pushes the embryo into endosperm.
Step 3: R represents cotyledons in the heart-shaped embryo.
Step 4: S indicates the radicle in the mature embryo.
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