Question

which statement is characteristic of reproduction in humans
A. The reproductive cells of males and females differ in chromosome number
B. Males and females produce gametes in the ovaries
C. Males and females produce the same number of gametes
D.The reproductive cycles of males and females are regulated by hormones

Answer 1

D. the reproductive cycle of males and females are regulated by hormones

Answer 2

Option D. The reproductive cycles of males and females are regulated by hormones is a characteristic of reproduction in humans.

• The reproductive cells of males and females, also called gametes, are haploid and have 23 chromosomes.
• They contain 22 autosomes and either X or Y chromosomes. Male gametes that contain X chromosome will fuse and give rise to a girl child. If the Y chromosome gamete fuses, the child will be a boy.
• Males produce gametes in the scrotum and females produce gametes in the ovaries.
• Males produce millions of sperms (male gamete) while females produce 50,000 - 80,000 eggs (female gamete) only.
• The reproductive cycle of males and females is regulated by hormones.