Mature Human Sperm and Ova are Similar in That

Question

Mature human sperm and ova are similar in that
A)they both have the same number of chromosomes.
B)they are approximately the same size.
C)they each have a flagellum that provides motility.
D)they are produced from puberty until death.
E)they are formed before birth.

Accepted Answer

Both mature human sperm and ova have 23 chromosomes, which combine during fertilization to form a zygote with 46 chromosomes. The other options are not entirely accurate: while sperm are typically smaller than ova, they do not have the flagellum for motility until they undergo changes in the female reproductive tract, and while both males and females produce gametes from puberty until a certain age, there is a limit to the reproductive lifespan. Additionally, while the precursors to sperm and ova are formed before birth, they do not fully mature until puberty.