If a recessive allele causes a fatal disease that kills the affected individual before he or she can reproduce, why doesn't that allele quickly become extinct in the population?

a. Alleles are never lost from a population.
b. The homozygous dominant individuals protect the recessive allele in their genomes.
c. The recessive allele is carried in the genome of heterozygotes, who do not suffer from the disease.
d. The homozygous recessive individuals give their alleles to other individuals before they die from the disease.


c. The recessive allele is carried in the genome of heterozygotes, who do not suffer from the disease.

Biology & Microbiology

You might also like to view...

Which 3 are true of dominant and recessive traits?

What will be an ideal response?

Biology & Microbiology

Some intercellular regulatory molecules that exert only very local effects are called ________ regulators.  

A.  sympathetic B.  exogeneous C.  merocrine D.  endocrine E.  paracrine

Biology & Microbiology

Ascomycetes are the largest group of fungi. When their haploid hyphae fuse without fusion of their nuclei, the resulting cells are

A. asexual. B. haploid. C. asci. D. diploid. E. dikaryotic.

Biology & Microbiology

An element cannot be broken down by chemical means.

Answer the following statement true (T) or false (F)

Biology & Microbiology