Unit 3.4: Cell Division: Meiosis. Vocabulary:. Diploid : di - = two ; having 2 full sets of chromosomes; denoted as 2n Haploid : having one full set of chromosomes; denoted as n . Gametes : sex cells; egg, sperm, spores
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Diploid: di- = two; having 2 full sets of chromosomes; denoted as 2n
Haploid: having one full set of chromosomes; denoted as n.
Gametes: sex cells; egg, sperm, spores
Homologous chromosomes: a pair of chromosomes that carry similar genetic information; one of the pair comes from the mother, the other comes from the father.
Karyotype: a “picture” of all the chromosomes in a single nucleus of an organism
Tetrad: “tetra-” = four; the four chromatids that make up a pair of homologous chromosomes.
Crossing-over: exchange of genetic material between pairs of homologous chromosomes.
Haploid: 1 copy of each chromosome
2n = 4
n = 2
4 haploid daughter cells
Genetically different from parent cell and each other
Maintains constant chromosome number for a species
Sex cells only