Consanguineous marriages (marriages between close relatives/cousins) are not advisible because

Options

A. more recessive defects are likely to occur
B. more chances of blood anomalies
C. more chances of multiple births
D. more chances of defective dominant traits to appears

Answer

A

Explanation

These marriages cause inbreeding depression. Wilson disease is common in children of close marriages. The `Cu^(++)` is deposited in brain and liver and causes mental disorder.