One of the parents of a cross has mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of $F_{2}$-progenies that mutation is found in

When two genetic loci produce identical phenotypes in cis as well as in trans position, they are considered to be

A black hybrid mouse is crossed with a pure brown mouse to produce a total of $24$ young ones. Which of the following result is most likely to be correct

Philadelphia chromosome is

To store blood some anticoagulant is added. It can be