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