Gene for maleness is present in humans over

X-chromosome

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Y-chromosome

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Autosome

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All the above

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Solution

The correct option is B Y-chromosome
The Y chromosome which is in the set of 22 main chromosomal set of XY (excluding sex chromosomes or allosomes which include for X and X in females and X and Y in males). Humans have a total of 23 pairs of chromosomes which are a set consisting of autosomes which are numbered accordingly to their size from largest to smallest. The Y-Chromosomes have Base pairs approximated to 58 million which contains over 200 sets of genes from which 72 are coded exclusively for proteins.
So, the correct answer is 'Y-chromosome.'

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