question_answer

In short horned cattle, genes for red (R) and white (r) coat colour occur. Cross between red (R R) and white (rr) produced (Rr) roan. This is an example of:

A)  incomplete dominance

B)  codominance

C)  complementary genes

D)  epistasis

Correct Answer: B

Solution :

When in \[{{F}_{1}}\] generation both the genes express themselves, this is called law of codominance.