n/2 where n is the total number of chromosomes normally present in that animal.
For example humans have 46 chromosomes in a somatic cell, and 23 chromosomes in a germ cell (sperm / egg).
Different species often have different numbers of chromosomes. In fact different numbers of chromosomes are why a donkey and a horse can mate to produce a mule, but the mule cannot reproduce.
Sperm whales have 42 chromosomes in total. This includes 21 pairs of chromosomes.
It has 23 chromosomes.
There are 23 chromosomes in each sperm produced by a human male.
Twenty-three chromosomes are in a cell that is formed from a sperm and egg cell.
Sperm cells, or gametes normally have 23 chromosomes each.
It varies from each animal, to a human. For example a human sperm has 23 chromosomes, while another animal, plant, fruit, or vergtable has different numbers.
Sperm whales have 42 chromosomes in total. This includes 21 pairs of chromosomes.
A sperm cell contains 23 [unpaired] chromosomes.
It has 23 chromosomes.
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23. There are 46 chromosomes in a human, half from the egg and half from the sperm.
There are 23 chromosomes in each sperm produced by a human male.
Sperm whales have 42 (2n) chromosomes.
There are 23 chromosomes in each the sperm and the egg. When they fuse, the resulting embryo will have 46 chromosomes.
There's no good reason for it; the number of chromosomes an animal has doesn't really have much to do with anything.
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