A: Meiosis is an important process for evolut | vedclass

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Question

(A) Meiosis is essential for sexual reproduction and evolution because it generates genetic diversity. Crossing over,which occurs during the pachytene

Vedclass · Accepted Answer

$A$ and $R$ are both true and $R$ is the correct explanation of $A$.

Vedclass · Answer

(A) Meiosis is essential for sexual reproduction and evolution because it generates genetic diversity. Crossing over,which occurs during the pachytene stage of prophase-$I$ of meiosis,involves the exchange of genetic material between non-sister chromatids of homologous chromosomes. This process creates new combinations of genes (recombination),which leads to genetic variation in the offspring. These variations are the raw material for evolution,as they allow populations to adapt to changing environments. Therefore,$A$ is true,$R$ is true,and $R$ is the correct explanation of $A$.

$A$: Meiosis is an important process for evolution. $R$: Crossing over induces genetic variation in a species.

Similar Questions

How many meiotic divisions are required to produce $32$ spermatozoa?

$A$: In higher organisms,a constant number of chromosomes is maintained generation after generation.
$R$: Meiosis occurs during the formation of gametes in plants and animals.

$X -$ It is very important for the process of evolution.
$Y -$ Crossing over is the exchange of genetic material between two homologous chromosomes.

Which process is significant for evolution?

Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.

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