In shorthorn cattle genes for red $(r_1)$, and white $(r_2)$ coat colour occur. Crosses between red $(r_1r_2)$ and white $(r_2r_2)$ produced $(r_1r_2)$ roan. This is an example of
Complementary genes
Epistasis
Codominance
Incomplete dominance
All of this obeys Mendel's laws except
Which one of the following blood groups belongs to the category of universal recipient
Give differences : Incomplete dominance and Co-dominance
Give differences : Incomplete dominance and Co-dominance
Explain the following terms with example
$(a)$ Co-dominance
$(b)$ Incomplete dominance