Two sex cells, usually an egg and sperm, come together

the joining of an egg and sperm

formed in the male reproductive organs

found in the female reproductive organs

a cell that forms from fertilization is a

this begins after fertilization and a new organism develops

body cells have 23 pairs of similar chromosomes and are called

sex calls have 23 single chromosomes and are called

the nucleus divides and produces two new cells woth one duplicated chromosome each

the nuclei divide and the chromatids separate

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