Which of the following indicates the correct names of $A, B, C$ and $D$ regions in the given diagram?

  • A
    $A - \text{Male gametes}, B - \text{Antipodals}, C - \text{Egg cell}, D - \text{Pollen tube}$
  • B
    $A - \text{Synergids}, B - \text{Secondary nucleus}, C - \text{Egg apparatus}, D - \text{Integuments}$
  • C
    $A - \text{Antipodals}, B - \text{Male gametes}, C - \text{Zygote}, D - \text{Micropyle}$
  • D
    $A - \text{Secondary nucleus}, B - \text{Synergids}, C - \text{Egg cell}, D - \text{Integuments}$

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Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.

Identify '$P$','$Q$','$R$','$S$',and '$T$' in the given figure.

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If a plant bears only staminate flowers, what is it called?

$A$: The higher organisms must evolve a special mechanism for gamete transfer.
$R$: Male and female gametes are formed in different individuals.

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