when are homologous chromosomes for the same trait separated from each other during meiosis
Homologous chromosome Meiosis is a round of two cell divisions that results in four haploid daughter cells that each contain half the number of chromosomes as the parent cell.[9] It reduces the chromosome number in a germ cell by half by first separating the homologous chromosomes in meiosis I and then the sister chromatids in meiosis II. The process of meiosis I is generally longer than meiosis II because it takes more time for the chromatin to replicate and for the homologous chromosomes to be properly oriented and segregated by the processes of pairing and synapsis in meiosis I.[6] During meiosis, genetic recombination (by random segregation) and crossing over produces daughter cells that each contain different combinations of maternally and paternally coded genes.[9] This recombination of genes allows for the introduction of new allele pairings and genetic variation.[2] Genetic variation among organisms helps make a population more stable by providing a wider range of genetic traits for natural selection to act on.[2]