Question

a human cell containing 22 autosomes and a y chromosome is...

an egg.

a sperm.

a somatic cell of a male.

a zygote.

Explanation:

• An egg (ovum) has 22 autosomes and an X chromosome.
• A somatic cell of a male has 22 pairs of autosomes (44 autosomes) and XY sex chromosomes.
• A zygote has 22 pairs of autosomes (44 autosomes) and either XX or XY sex chromosomes depending on sperm contribution.
• A sperm can have 22 autosomes and either an X or a Y chromosome.

Answer:

a sperm.