15.5 Review Questions

Review Questions

1. Marfan syndrome is inherited in an autosomal dominant pattern. Which of the following is true?

1. Female offspring are more likely to be carriers of the disease.
2. Male offspring are more likely to inherit the disease.
3. Male and female offspring have the same likelihood of inheriting the disease.
4. Female offspring are more likely to inherit the disease.

2. In addition to codominance, the ABO blood group antigens are also an example of ________.

1. incomplete dominance
2. X-linked recessive inheritance
3. multiple alleles
4. recessive lethal inheritance

3. Zoe has cystic fibrosis. Which of the following is the most likely explanation?

1. Zoe probably inherited one faulty allele from her father, who is a carrier, and one normal allele from her mother.
2. Zoe probably inherited one faulty allele from her mother, who must also have cystic fibrosis, and one normal allele from her father.
3. Zoe must have inherited faulty alleles from both parents, both of whom must also have cystic fibrosis.
4. Zoe must have inherited faulty alleles from both parents, both of whom are carriers.

4. What is the most challenging issue facing genome sequencing?

1. the inability to develop fast and accurate sequencing techniques
2. the ethics of using information from genomes at the individual level
3. the availability and stability of DNA
4. all of the above

5. What kind of diseases are studied using genome-wide association studies?

1. viral diseases
2. single-gene inherited diseases
3. diseases caused by multiple genes
4. diseases caused by environmental factors