An allele.
After condensing into long strands in the nucleus during Leptotene/Leptonema Chromosomes line up approximately with each other into homologous pairs. Telomeres cluster at one end of the nucleus and synapsis (pairing together of the homologous chromosomes) takes place in Zygotene/Zygonema.
Homologous chromosome have gene of same character.
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
-- synapsis: homologous chromosomes are coming close together and bivalents are formed.-- crossing-over: non-sister chromatids of homologous chromosomes interchange genesThe pairing (formation of bivalents) allows crossing over to take place and this enables genetic variations in the gametes.
For genetic variation to take place
at the same place on homologous chromosomes source: Alleles of a gene reside at the same locus on homologous chromosomes.
pairing of homologous chromosomes and recombination of genetic material takes place
After condensing into long strands in the nucleus during Leptotene/Leptonema Chromosomes line up approximately with each other into homologous pairs. Telomeres cluster at one end of the nucleus and synapsis (pairing together of the homologous chromosomes) takes place in Zygotene/Zygonema.
Homologous chromosome have gene of same character.
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it takes place between homologous chromosomes and results in new gene combinations
During meiosis crossing over takes place between homologous chromosomes. Thus genetic material get interchanged and 50 % new combinations are obtained after each meiotic cell division. Thus, meiosis brings heritable variation in the gametes.
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
Each homologous chromosome in a diploid cell originates from one parent. One chromosome is inherited from the mother and the other from the father. They carry different versions of the same genes and pair up during meiosis to ensure genetic diversity in offspring.