If a colourblind man marries a woman who is homozygous for normal colour vision, the probability of their son being colourblind is
It is said, that the harmful alleles get eliminated from population over a period of time, yet sickle cell anaemia is persisting in human population. Why ?
Red green colour blindness appears due to
If a character is always transmitted directly from a father to all his sons and from their sons to all their sons, then which chromosome carries the gene for the character
In the above pedigree, assume that no outsider marrying in, carry a disease. Write the genotypes of $C$ and $D$.