In the testis, haploid cells that have completed meiosis are called:
a. Leydig cells
b. Sertoli cells
c. Spermatids
d. Spermatocytes
e. Spermatogonia
ANS: C
Spermatogonia are stem cells that undergo mitosis, whereas spermatocytes are cells that are un-dergoing but have not yet completed meiosis.
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