Principles of I...

An individual homozygous to genes cd is crossed with wild type $$++$$ and $$F_1$$ crossed back with the double recessive. The appearance of the offsprings is as follows.
$$++ \rightarrow 903$$
$$cd \rightarrow 897$$
$$+d \rightarrow 98$$
$$c+ \rightarrow 102$$
The distance between the genes $$c$$ and $$d$$ is 

In our society, women are blamed for producing female children. Choose the correct option for sex determination in humans.

Which of the following is true for progenies of $$F_3$$ generation of monohybrid cross?

Three genes A, B and C are involved in determination of skin colour. If a couple with fair skin colour, produced a child with dark skin colour, then the genotype of the parents most probably can be:-

Select the monohybrid ratio in Pea.

If a mutation occurs in a gamete, it would influence 

When a cross is made between round seed and yellow seeds (RrYy) and round seed and green seeds (Rryy), what proportion of phenotype in the offspring could be expected to be wrinkled and green

_____ is the root of any plant breeding programme 

Mendel choose pea plants because

In pea plant gene 'A' governs height of stem and gene 'B' governs starch grain size. If plant is heterozygous for these two genes and is selfed, what are proportionate presence of different phenotypic groups?