1. Approximately how many recessive genetic diseases does the average person carry an allele for?
1 of 20
Other questions in this quiz
2. Two parents are heterozygous carriers of an autosomal recessive disease. What is the probability that their first child will have that condition?
3. In most cases, an individual born with an autosomal recessive disease has parents who are both asymptomatic obligate carriers. If this is the case, what is the risk of a subsequent child having the same condition?
4. Which of the following is the most accurate definition for hemizygous?
- Having two of the same alleles at a locus
- Having two or more genetically different cell lines derived from a single zygote
- Having only one copy of a gene or DNA sequence in a diploid cell
- Having two different alleles at a locus
5. True or false: Y-linked conditions will affect all sons from an affected father?