Meiosis Flashcards
Meiosis
Type of cell division that involves two rounds of division that ultimately results in four cells with only one copy of each chromosome; occurs in sex cells, primary oocyte and primary spermatocyte
Alleles
Different versions of the same gene (at the same locus) determined by small differences in the DNA sequence of the gene
Locus
A specific, fixed position on a chromosome where a particular gene or genetic marker is located
Meiosis Independent Assortment
The process by which the maternal and paternal chromosomes of each homologous pair behave independently of the other homologous pair as they separate in meiosis; this ensures that each haploid contains a mixture of the genes from the organism’s mother and father
Crossing Over
An event during meiosis in which homologous chromosomes exchange segments with one another. This creates genetic diversity due to new combinations of genes