Genetic recombination is due to .....

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(A) Genetic recombination is the process by which genetic material is exchanged between different organisms or chromosomes,leading to the production o

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Fertilization and meiosis

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(A) Genetic recombination is the process by which genetic material is exchanged between different organisms or chromosomes,leading to the production of offspring with combinations of traits that differ from those found in either parent.$1$. $Meiosis$: During the prophase $I$ of meiosis,specifically in the pachytene stage,crossing over occurs between non-sister chromatids of homologous chromosomes. This physical exchange of $DNA$ segments results in new combinations of alleles.$2$. $Fertilization$: The fusion of two genetically distinct gametes (sperm and egg) during fertilization brings together two different sets of genetic information,further contributing to the recombination of genes in the zygote.Therefore,both meiosis and fertilization are essential for genetic recombination in sexually reproducing organisms.

Column-$I$	Column-$II$
$(a)$ Hyaluronidase	$(i)$ Acrosomal reaction
$(b)$ Corpus luteum	$(ii)$ Morphogenetic movements
$(c)$ Gastrulation	$(iii)$ Progesterone
$(d)$ Capacitation	$(iv)$ Mammary gland
$(e)$ Colostrum	$(v)$ Sperm activation

Similar Questions

$A$: $LH$ acts on Sertoli cells for release of certain factors required for spermatogenesis.
$R$: Spermiation occurs directly under the influence of $LH$.

Match the following with the correct combination:

Column-$I$ Column-$II$

$(a)$ Hyaluronidase $(i)$ Acrosomal reaction

$(b)$ Corpus luteum $(ii)$ Morphogenetic movements

$(c)$ Gastrulation $(iii)$ Progesterone

$(d)$ Capacitation $(iv)$ Mammary gland

$(e)$ Colostrum $(v)$ Sperm activation

Ejaculation of semen:

The hormone that maintains the secretory activity of the corpus luteum as well as the increase in the size of the mammary glands is

The $Oestrus$ cycle is a characteristic of which of the following?

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