Which statement about the X chromosome is correct?
A) The X chromosome carries only the recessive genes in males.
B) X and Y are different in size but carry nearly equal numbers of genes.
C) X chromosome inactivation only occurs in females.
D) The X chromosome carries only gender-related genes.
E) The X chromosome carries the SRY gene.

Question

Which statement about the X chromosome is correct?  
A) The X chromosome carries only the recessive genes in males.
B) X and Y are different in size but carry nearly equal numbers of genes.
C) X chromosome inactivation only occurs in females.
D) The X chromosome carries only gender-related genes.
E) The X chromosome carries the SRY gene.

Quizplus · Accepted Answer

X chromosome inactivation is a process that occurs in females, where one of the two X chromosomes in each cell is randomly inactivated during early embryonic development. This ensures that females, like males, have one functional copy of the X chromosome in each body cell.

Which Statement About the X Chromosome Is Correct