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In humans, at the end of the first meiotic division, the male germ cells differentiate into the:
A
spermatids
B
spermatogonia
C
primary spermatocytes
D
secondary spermatocytes
Detailed Solution
The spermatogonia (male germ cells) on the inside wall of the seminiferous tubules are diploid and multiply by mitosis.
Some of the spermatogonia grow into primary spermatocytes, which are also diploid (46 chromosomes).
A primary spermatocyte completes the first meiotic division (reduction division), leading to the formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each.
The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids.
The spermatids are transformed into spermatozoa (sperms) by the process called spermiogenesis.
So at the end of the first meiotic division the male germ cells differentiate into secondary spermatocytes.
Some of the spermatogonia grow into primary spermatocytes, which are also diploid (46 chromosomes).
A primary spermatocyte completes the first meiotic division (reduction division), leading to the formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each.
The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids.
The spermatids are transformed into spermatozoa (sperms) by the process called spermiogenesis.
So at the end of the first meiotic division the male germ cells differentiate into secondary spermatocytes.