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Q: Which chromosome is responsible for manliness in man?
  • A. XO
  • B. YO
  • C. XX
  • D. XY
Correct Answer: Option D - XY chromosome is responsible for manliness in man. Male have the Y chromosome, the genes on this chromosome tend to be involve in male sex determination and development. Sex is determined by the SRY gene, which is responsible for the development of fetus into a male. In human being there are 23 pairs of chromosomes, and 22 pairs are autosomal and 1 pair called as sex chromosome (in female XX and male XY).
D. XY chromosome is responsible for manliness in man. Male have the Y chromosome, the genes on this chromosome tend to be involve in male sex determination and development. Sex is determined by the SRY gene, which is responsible for the development of fetus into a male. In human being there are 23 pairs of chromosomes, and 22 pairs are autosomal and 1 pair called as sex chromosome (in female XX and male XY).

Explanations:

XY chromosome is responsible for manliness in man. Male have the Y chromosome, the genes on this chromosome tend to be involve in male sex determination and development. Sex is determined by the SRY gene, which is responsible for the development of fetus into a male. In human being there are 23 pairs of chromosomes, and 22 pairs are autosomal and 1 pair called as sex chromosome (in female XX and male XY).