Definitions Diploid Cells—cells that have pairs of chromosomes. There are 2 of each chromosome in diploid cells. Haploid Cells—cells that have only one.

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Meiosis and Sexual Reproduction

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Definitions Diploid Cells—cells that have pairs of chromosomes. There are 2 of each chromosome in diploid cells. Haploid Cells—cells that have only one of each chromosome. Haploid cells are used for sexual reproduction.

Creating Cells for Sexual Reproduction Meiosis: Creating Cells for Sexual Reproduction

Prophase I Chromosomes are already copied Centrioles separate Nuclear membrane breaks down

Metaphase I Chromosome pairs line up next to each other

Anaphase I Chromosome pairs split Sister chromatids stay connected

Telophase I Cell starts to divide in two Nuclear membranes start to form again

Prophase II Cells have one set of sister chromatids Nuclear membrane breaks down Centrioles separate

Metaphase II Sister chromatids line up at the middle of the cell

Anaphase II Sister chromatids divide

Telophase II Cells start to split in two Each cell has one set of chromosomes—it is a haploid