In recent years,mt-DNA and Y-chromosome DNA s | vedclass

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(B) The $mt-DNA$ (mitochondrial $DNA$) is inherited exclusively from the mother (maternal inheritance),and the $Y$-chromosome is inherited exclusively

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They are uniparental in origin and do not undergo recombination.

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(B) The $mt-DNA$ (mitochondrial $DNA$) is inherited exclusively from the mother (maternal inheritance),and the $Y$-chromosome is inherited exclusively from the father (paternal inheritance). Because they are inherited from only one parent,they do not undergo genetic recombination during sexual reproduction. This lack of recombination allows scientists to trace lineages and evolutionary history back through generations without the genetic shuffling that occurs in autosomal chromosomes.

In recent years,$mt-DNA$ and $Y$-chromosome $DNA$ sequences have been used for the study of human evolution because:

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