If a Person Is a Carrier for a Disease;he or She

Multiple Choice

If a person is a carrier for a disease;he or she has

A) one normal and one defective disease allele and is affected by the disease.
B) two defective disease alleles and is unaffected by the disease.
C) one normal and one defective disease allele and is unaffected by the disease.
D) two defective disease alleles and is affected by the disease.
E) two normal disease alleles and is affected by the disease.