Blood bank of the body or reservoir where the blood is stored and can be mobilized, is
Heart
Liver
Bone marrow
Spleen
In a gene pool, along with beneficial mutations those mutations also exists which are damaging to an individual. It has been found that these mutations are irreversible because
$I.$ they have survival value
$II.$ they are acquired
$III.$ they are recessive and carried by heterozygous individuals only
$IV.$ they show genetic drift
Choose the incorrect option for given statement
One of the parents of a cross has a 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
Mongolism syndrome is caused by
An albino lady marries a normal man having one gene for albinism. They have $3$ daughters and $1$ son. The son will be
Which one of the following mutation partially or fully reverses the harmful effects of previous mutation