How do alleles separate?

Answer 1

Linked genes are genes that reside close to each other physically on the same chromosome. So the only way alleles on linked genes can separate is by crossing over, or recombination, where pieces of homologous chromosomes get exchanged. For example, consider the genes A and B, with respective alleles a and b, which reside on two homologous chromosomes in the following configuration.: ---A----B---- ---a-----b--- If NOrecombination occurs during meiosis, the gametes formed will look exactly as a above: Gamete 1 ---A----B--- Gamete2 ---a---b--- The alleles have not separated in this case. However, if recombination DOES OCCUR between the genes A & B during meiosis, the gametes will look like this: Gamete 1: ---A---b--- Gamete 2: ---a---B--- That is how the alleles can separate.

Answer 2

During prophase (in meiosis) homologous chromosomes sometimes exchange parts, in a process called crossing over. In most chromosomes, at least one exchange between each homologous pair occurs during each meiotic cell division. In the end, the chromosomes that each haploid daughter cell receives will have different sets of alleles than the chromosomes of the parent cells.

Answer 3

Meiotic segregation of chromosomes occur as a result of pairing up of homologous chromosomes at the inner nuclear membrane. This phenomenon is called Meiotic Bouquet Formation. How this is formed is a big question, but it is recently proved that this is a 'directed motion' by Peter Carlton et al.

Answer 4

During meiosis I, the alleles separate during anaphase.

Answer 5

I can't Really explain how, but I can explain why! When Mitosis happens, it gives more space for the other cells to reproduce. Mitosis happens among most cells!

Answer 6

Through crossing over

Answer 7

meiosis I