Need help with understanding the difference between homologous chromosome, chromatid and how a important are they in meiosis and

Question

Tanzania [10]

3 years ago

13

Need help with understanding the difference between homologous chromosome, chromatid and how a important are they in meiosis and

mitosis

Biology

1 answer:

Valentin [98] · Answer 1 · 2022-08-20T06:15:57+03:00

Homologous chromosomes are comparative and not indistinguishable. They have similar qualities in various allelic structures, that is the reason eye shading, hair shade of the two people is not the same. At the point when cell partitions it needs to make precise of chromosomes it has. DNA is imitated yet two duplicates are not seperated complelely - they are held together by centromere. At the season of metaphase these duplicated chomosomes - each a couple of sister chromatids , are orchestrated at equitor, shafts are connected to centromeres, centromeres partition and isolated chromatids are pulled separated. This guarantees daughter cells get every one of the chromosomes.
At the season of meiosis homologous chromosomes match up, may experience cossing over - hereditary trade between two non-sister chromatids. At meiosis I homologous chromosomes are segragated and at meiosis II sister chromatids are isolated.