Marriage between close relatives should be avoided because it induces more:

Options

A. More mutations can occur
B. More recessive defects are likely to appear
C. More chance there for Rh blood group anomalies
D. More chances are there for multiple births

Answer

B

Explanation

(b) Marriage between close rlatives and ccousins is not adviable beacause recessive lrthals asre carried in heteroygous consitions and express themselves only when matng takes place between two carrir individuals or close relatives.