Expected children of a blue-eyed $(recessive)$ woman and brown-eyed $(dominant)$ man who had a blue-eyed mother are likely to be

How many nucleosomes are found in helical coil of $30\ nm$ chromatin fibre

The resemblance of individuals to their progenitors is called

Drosophila flies with one half of the body male and other half female is referred to as

When two unrelated individuals or lines are crossed, the performance of $F_1$ hybrid is often superior to both its parents. This phenomenon is called