Question

One of the parents of a cross has mutation in mitochondria. In that cross, that parent is taken as a male. During segregation of `F_(2)`-progenies that mutation is found in
A. one-third of the progenies
B. none of the progenies
C. all of the progenies
D. fifty per cent of the progenies

Answer 1

Correct Answer - B
In the present case the male parent (not female) had mutation in mitochondria, there are negligible chances of the mutation being inherited. It is the female reproductive cell which usually carries more cytoplasm and cytoplasmic organelles than the male cell and hence, naturally would be expected to influence non-Mendelian traits.