What map unit (Centimorgan) is adopted in the | vedclass

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(C) The genetic map unit is known as the Centimorgan $(cM)$,named in honor of Thomas Hunt Morgan.One Centimorgan $(1 \ cM)$ is defined as the distance

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$A$ unit of distance between genes on chromosomes,representing $1 \%$ cross over

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(C) The genetic map unit is known as the Centimorgan $(cM)$,named in honor of Thomas Hunt Morgan.One Centimorgan $(1 \ cM)$ is defined as the distance between two gene loci on a chromosome such that there is a $1 \%$ frequency of recombination (crossing over) between them.Therefore,a map distance of $1 \ cM$ corresponds to $1 \%$ recombination frequency.This unit is essential for mapping the relative positions of genes on chromosomes.

What map unit (Centimorgan) is adopted in the construction of genetic maps?

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