A lethal allele is defined as:
A)an allele that destroys its complementary allele
B)an allele that,when expressed,causes death through natural causes / old age
C)an allele that,when expressed,causes death before reproductive age
D)any allele that causes a disease

Question

Quizplus · Accepted Answer

A lethal allele is an allele that causes death before reproductive age when expressed. It is often inherited in a recessive manner and can cause a reduction in the expected ratio of offspring in a cross. Choices A, B, and D are incorrect because they do not accurately describe a lethal allele.

A Lethal Allele Is Defined As