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Biology Chapter 11 Section 4, 5

Biology Chapter 11 Section 4-5
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Homologous
term used to refer to chromosomes that each have a corresponding chromosome from the opposite-sex parent
Diploid
term used to refer to a cell that contains both sets of homologous chromosomes
Haploid
term used to refer to a cell that contains only a single set of chromosomes and therefore only a single set of genes
Meiosis
process by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell
Tetrad
structure containing 4 chromatids that forms during meiosis
Crossing-over
process in which homologous chromosomes exchange portions of their chromatids during meiosis
Gene map
diagram showing the relative locations of each known gene on a particular chromosome