What percentage of homozygous `Rh^-` will be born amongst 4 childre of a couple where the hudband is heterozygous for `Rh^+` and wife is homozygous for `Rh^+`gene ?

When the dihybrid TtRr plants are self fertilized, what percentage of the descendents would be heterozygous for one character and homozygous for another?

In raccoons, a dark face mask in dominant over a bleached face mask. Several crosses were made between raccoons that were heterozygous for dark face mask and that were homozygous for bleached face mask. What percentage of the offspring would be expected to have a dark face mask?

Haemolytic jaundice is due to dominant gene but only 20% of the people develop this disease. A heterozygous man marries a homozygous normal woman. What proportion of the children in population would be expected to have this disorder :-

Haemolytic jaundice is due to dominant gene but only 20% of the people develop this disease. A heterozygous man marries a homozygous normal wiman. What proportion of the children in population would be expected th have this disorder :-

A Gene locus has two alleles A, a. if the frequency of dominant allele A is 0.4 then what will be the frequency of homozygous dominants, heterozygous and homozygous recessive individual in the population?

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population