Selection will not eliminate lethal recessive gene from a large population because

Question

Selection will not eliminate lethal recessive gene from a large population because (A) there are always some heterozygotes carriers of the alleles (B) gene fixation occurs in populations (C) heterozygotes are at a selective advantage (D) rate of mutation to the lethal allele is high

Tardigrade Admin · Accepted Answer

The lethal gene expresses themselves only in recessive (homozygous) condition. Because the lethal gene can not express be in heierozygous condition. Thus, cannot be eliminated from population.

Q. Selection will not eliminate lethal recessive gene from a large population because

there are always some heterozygotes carriers of the alleles

gene fixation occurs in populations

heterozygotes are at a selective advantage

rate of mutation to the lethal allele is high

The lethal gene expresses themselves only in recessive (homozygous) condition. Because the lethal gene can not express be in heierozygous condition. Thus, cannot be eliminated from population.