Question

What are linked genes? How can a pair of linked genes be identified?

Answer 1

Linked genes refer to the physical association of the genes present on the same chromosome. These genes are too close to each other that crossing over is very rare in such cases.

Linked genes can be identified easily. On crossing male and female, if the number of progenies produced is more like parents (>50%), this means the genes are linked. Whereas if the number of recombinants or non-parental types is produced more in number then genes are not linked.