Question

What happens when two genes are located on the same chromosome?

Answer 1

Genes in chromosomes:

1. When genes are located on the same chromosome, this physical association is termed ‘linkage’.
2. Morgan coined the term linkage.
3. When the genes are tightly linked, they show very less recombination at the time of reproduction and their inheritance pattern shows more parental combinations.
4. Loosely linked genes show more recombination, i.e. non-parental gene combination.
5. Recombination occurs during meiosis in the formation of gametes.