In the given figure,what do ''A'' and ''B'' r | vedclass

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Question

(B) The provided figure represents the life cycle of a typical alga (like Fucus) showing diplontic life cycle.In this cycle,the main plant body is dip

Vedclass · Accepted Answer

$n, 2n$

Vedclass · Answer

(B) The provided figure represents the life cycle of a typical alga (like Fucus) showing diplontic life cycle.In this cycle,the main plant body is diploid $(2n)$.$A$ represents the process of meiosis,which occurs in the diploid plant body to produce haploid $(n)$ gametes.$B$ represents the process of fertilization (syngamy),where two haploid $(n)$ gametes fuse to form a diploid $(2n)$ zygote,which then develops into the diploid plant body.Therefore,$A$ represents the haploid state $(n)$ resulting from meiosis,and $B$ represents the diploid state $(2n)$ resulting from fertilization.Thus,the correct option is $B$.

Column-$I$ (Life Cycles)	Column-$II$
$P$. Haplontic	$I$. Volvox,Spirogyra,Chlamydomonas
$Q$. Diplontic	$II$. Gymnosperms,Angiosperms
$R$. Haplo-diplontic	$III$. Bryophytes,Pteridophytes

In the given figure,what do $''A''$ and $''B''$ represent respectively?

Similar Questions

Match the following columns:

Column-$I$ (Life Cycles) Column-$II$

$P$. Haplontic $I$. Volvox,Spirogyra,Chlamydomonas

$Q$. Diplontic $II$. Gymnosperms,Angiosperms

$R$. Haplo-diplontic $III$. Bryophytes,Pteridophytes

$A$: Different plant groups show different patterns of life cycles.
$R$: During the life cycle,there is an alternation of generation between a diploid gametophyte and a haploid sporophyte.

Which of the following characteristics is incorrect for a diplontic life cycle?

In which of the following plants is a haplontic life cycle observed?

In a haplontic life cycle,the zygote divides by meiosis to form which type of nuclei before germination?

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