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What happens to a spermatid to change it into a sperm cell?
O Meiosis occurs, making a cell with n chromosomes.
The nuclei of two polar bodies fuse, making a cell with 2n chromosomes.
O A tail is added, making the sperm a motile cell.
O Amembrane hardens, making the sperm a nonmotile cell.

Sagot :

A tail is added, making the sperm a motile cell.

Sperm does not become spermatozoa (what we think of when we think of sperm) until the formation of the tail.