Terms in this set (20)
Chromosomes that have the same type of information; one comes from mom, one comes from dad. These are separated during meiosis I.
Replicated forms of a chromosome joined together by the centromere and eventually separated during meiosis II.
A cell that contains two sets of chromosomes; one inherited from the mother and one inherited from the father. Most body cells are considered diploid cell.
A cell that contains only one set of chromosomes instead of the normal pair. Gametes, which are sex cells like sperm and eggs, are haploid cells.
Body cells (everything except egg and sperm). These cells are diploid.
Sex cells produced by meiosis. Egg and sperm.
Cell grows and chromosomes replicate in preparation for meiosis. Consists of G1, S, and G2.
Homologous chromosomes pair, nucleus dissolves, crossing over occurs.
Homologous pairs line up at the middle of the cell. The centromere of each chromatid pair attaches to one spindle fiber.
Homologous chromosomes exchange genetic material. This happens during prophase I and increases genetic variation.
Homologous pairs separate and move to opposite poles. Note that chromatids do not separate - each duplicated chromosome still has two chromatids.
Chromosomes uncoil, two nuclei form, the cytoplasm divides and two new cells form. Each new cell has one duplicated chromosome from each similar pair.
Chromosomes condense in each of the two new cell. The duplicated chromosomes and spindle fibers reappear in each new cell.
The sister chromatids move to the center of each of the two cells.
Sister chromatids seperate and move to opposite ends of the two cells.
Chromosomes uncoil, four nuclei form, the cytoplasm divides and four new cells form. Each new cell has one chromosome from each pair. 4 diverse daughter cells form.
Male gamete (sex cell)
Female gamete (sex cell), also called an egg
Cell division that produces haploid gametes cells through two cell divisions (PMAT I, PMAT II).
A picture of all the chromosomes in a cell arranged in pairs