mieosis

Chromosomes

DNA; Instructions for your traits; 46 in each human cell, or 23 pairs

Homologous chromosomes

chromosomes that make up the pairs

Gametes

sex cells with half the number of chromosomes (23); Made through meiosis

n

used to represent the number of chromosomes in a cell

Haploid cell

a cell with n chromosomes (23)

Diploid cell

a cell with 2n chromosomes (46)

Prophase I

Homologous chromosomes pair up and share DNA (crossing over)

Metaphase I

Homologous chromosomes line up at equator

Anaphase I

Homologous chromosomes get pulled apart

Telophase I

Chromosomes enveloped by nucleus; Cytokinesis makes 2 cells, each with 2n

Meiosis II

Exact same as mitosis except for end result.; Results in 4 haploid (n) gametes

Mitosis

1 cell division that produces 2 diploid daughter cells; Cells are identical; Used for non-sex cells

Meiosis

2 cell divisions that produce 4 haploid daughter cells; Cells are not identical; Used for sex cells