Question 52
Chromosomes, DNA and Sex LinkageIn man, sex is determined by the inheritance of
- A.a pair of homologous chromosomes
- B.an extra chromosome in the cells of a female
- C.a dominant gene for maleness present in man
- D.two similar X chromosomes in the female and X and Y chromosomes in the male.
Show the answer and explanation
Answer: D (two similar X chromosomes in the female and X and Y chromosomes in the male.)
Explanation
Females are XX and males are XY; the sex chromosome in the sperm decides the child's sex.