Question

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

• A. there are always some heterozygote carriers of the allele
• B. gene fixation occurs in population
• C. heterozygotes are at a selective advantage
• D. rate of mutation to the lethal allele is high

Answer 1

The correct option is A there are always some heterozygote carriers of the allele

Only in homozygous condition they are lethal.