Crossing over is..........

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Question

(A) Crossing over is a biological process that occurs during $Prophase-I$ of $Meiosis-I$.It involves the exchange of genetic material between non-sist

Vedclass · Accepted Answer

The exchange of genetic material between two homologous chromosomes.

Vedclass · Answer

(A) Crossing over is a biological process that occurs during $Prophase-I$ of $Meiosis-I$.It involves the exchange of genetic material between non-sister chromatids of homologous chromosomes.This process leads to genetic recombination,which is essential for creating genetic diversity in offspring.Therefore,the correct definition is the exchange of genetic material between two homologous chromosomes.

Column $I$	Column $II$
$(a)$ Prophase-$I$	$(p)$ Nucleolus and nuclear membrane reappear
$(b)$ Metaphase-$I$	$(q)$ Longest phase
$(c)$ Anaphase-$I$	$(r)$ Homologous chromosomes align at the equatorial plate
$(d)$ Telophase-$I$	$(s)$ Number of chromosomes reaching each pole is half of the original cell

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