Sex-influenced characters are due to

Sickle-cell anemia has not been eliminated from the African population because,........

Select the correct match.

On the basis of Mendel's work,which of the following laws were formulated?
$I.$ Linkage
$II.$ Segregation
$III.$ Incomplete dominance
$IV.$ Independent assortment
Choose the correct option.

Haemolytic jaundice is caused due to a dominant gene but only $10\%$ of the people who carry the gene actually develop the disease. $A$ heterozygous man marries a homozygous normal woman; what proportion of the children would be expected to develop the haemolytic disease?

Organisms that contain two or more types of genotypes in their tissues are called: