When does segregation and independent assortment happen during meiosis?
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When does segregation happen during meiosis?
During gamete formation meiotic metaphase I
Chromosome segregation occurs at two separate stages during meiosis called anaphase I and anaphase II (see meiosis diagram). In a diploid cell there are two sets of homologous chromosomes of different parental origin (e.g. a paternal and a maternal set). During the phase of meiosis labeled “interphase s” in the meiosis diagram there is a round of DNA replication, so that each of the chromosomes initially present is now composed of two copies called chromatids. These chromosomes (paired chromatids) then pair with the homologous chromosome (also paired chromatids) present in the same nucleus (see prophase I in the meiosis diagram). The process of alignment of paired homologous chromosomes is called synapsis (see Synapsis). During synapsis, genetic recombination usually occurs. Some of the recombination events occur by crossing over (involving physical exchange between two chromatids), but most recombination events involve information exchange but not physical exchange between two chromatids (see Synthesis-dependent strand annealing (SDSA)). Following recombination, chromosome segregation occurs as indicated by the stages metaphase I and anaphase I in the meiosis diagram.
When does independent assortment happen during meiosis?
During gamete formation anaphase I and anaphase II
Chromosome segregation
Chromosome segregation
https://en.wikipedia.org/wiki/Chromosome%20segregation
Mendelian inheritance
https://en.wikipedia.org/wiki/Mendelian%20inheritance
Chromosome segregation is the process in eukaryotes by which two sister chromatids formed as a consequence of DNA replication, or paired homologous chromosomes, separate from each other and migrate to opposite poles of the nucleus. This segregation process occurs during both mitosis and meiosis.
Chromosome segregation
Independent assortment occurs in eukaryotic organisms during meiotic metaphase I, and produces a gamete with a mixture of the organism's chromosomes.
Mendelian inheritance
Chromosome segregation occurs at two separate stages during meiosis called anaphase I and anaphase II (see meiosis diagram).
Chromosome segregation
Chromosome segregation is the process in eukaryotes by which two sister chromatids formed as a consequence of DNA replication, or paired homologous chromosomes, separate from each other and migrate to opposite poles of the nucleus. Chromosome segregation occurs at two separate stages during meiosis called anaphase I and anaphase II. This segregation process occurs during both mitosis and meiosis. Independent assortment occurs in eukaryotic organisms during meiotic metaphase I, and produces a gamete with a mixture of the organism's chromosomes.