Which of the following is incorrectly paired?

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(A) The $Sry$ gene (Sex-determining region $Y$) is located on the $Y$ chromosome,not the $X$ chromosome. It is responsible for the initiation of male

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$Sry$ gene - $X$ chromosome

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(A) The $Sry$ gene (Sex-determining region $Y$) is located on the $Y$ chromosome,not the $X$ chromosome. It is responsible for the initiation of male sex determination in mammals.Option $B$ $(2n-2)$ correctly represents a nullisomic condition where a pair of homologous chromosomes is missing.Option $C$ correctly identifies that prokaryotes possess a nucleoid,which is an irregularly shaped region containing genetic material.Option $D$ correctly identifies that polytene chromosomes are found in the salivary glands of Drosophila larvae.

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