When both alleles of a pair express themselves fully in the heterozygous condition,it is called.....

In a gene showing codominance,the alleles:

What will be the phenotypic ratio of the offspring when a roan-colored cow is crossed with a white bull?

If two persons with $AB$ blood group marry and have a sufficiently large number of children,these children could be classified as $A$ blood group : $AB$ blood group : $B$ blood group in $1 : 2 : 1$ ratio. Modern techniques of protein electrophoresis reveal the presence of both $A$ and $B$ type proteins in $AB$ blood group individuals. This is an example of:

When both alleles of a pair are fully expressed in a heterozygous condition,it is called $:-$

Write a short note on co-dominance.