How many spermatids are formed from one primary spermatocyte?
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Solution
Spermatogenesis:
Spermatogenesis is the process by which haploid spermatozoa are produced.
First, mitotic division occurs, resulting in the formation of the primary spermatocyte, and later, mitotic division results in the formation of spermatids, which then form the spermatozoa.
Primary spermatocyte:
The primary spermatocyte is formed first in the process of spermatogenesis; it is diploid in nature and has 46 chromosomes.
These primary spermatocytes go through meiosis I, which results in the formation of two secondary spermatocytes.
Later, each secondary spermatocyte produced by meiosis I divide again during the second meiosis, or meiosis II, to form the two spermatids.
These spermatids are later transformed into spermatozoa.
So two spermatids are formed from each secondary spermatocyte, for a total of four spermatids.
So four spermatozoa are formed from a single primary spermatocyte.
Later, the sperm produced is released through a process known as spermitation.