A: Zygote is the first cell of the new genera | vedclass

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(B) The Assertion is correct because in all sexually reproducing organisms,the fusion of male and female gametes results in the formation of a diploid

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Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.

Vedclass · Answer

(B) The Assertion is correct because in all sexually reproducing organisms,the fusion of male and female gametes results in the formation of a diploid zygote,which serves as the vital link between two generations.The Reason is also correct because embryogenesis involves the development of an embryo from the zygote through the processes of cell division (mitosis) and cell differentiation (specialization of cells into tissues and organs).However,the Reason does not explain why the zygote is the first cell of the new generation; it merely describes the processes that occur after the zygote is formed. Therefore,both are correct,but the Reason is not the correct explanation of the Assertion.

Feature	Asexual reproduction	Sexual reproduction
$(a)$ Condition	Favourable	Unfavourable
$(b)$ Occurrence	More	Less
$(c)$ Structures	Spore	Gamete
$(d)$ Division	Meiosis	Mitosis

$A$: Zygote is the first cell of the new generation in all sexually reproducing organisms.
$R$: Cell division and cell differentiation are the stages of embryogenesis.

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$A$: Zygote is the first cell of the new generation in all sexually reproducing organisms.$R$: Cell division and cell differentiation are the stages of embryogenesis.