Question

A genetic disorder is an illness which is caused by which of the following?

Abnormality in the alleles passed from parents to children

Excessive use of narcotics and alcohol

Uncontrolled growth of abnormal cells in the body

Viruses passed from parents to children

Answer 1

Abnormality in alleles. This is, in fact, near-synonymous with "genetic disorder".

Excessive use of narcotics and alcohol is irrelevant. Uncontrolled growth sounds like transcription factors were screwed up. Viruses passed means that the organism is passed, not the gene.

Answer 2

Thanks(: