Reference no: EM133273119

1. What is the phenotypic consequence of changing a codon sequence from CUG to UUG?

a. Missense mutation

b. Frameshift mutation

c. Silent mutation

d. Nonsense mutation

2. What is the consequence of a UUC to a UCC mutation?

a. Point mutation

b. Insertion mutation

c. Silent mutation

d. Deletion mutation

3. Which statement describes the difference between a polymorphic allele and a mutant allele?

a. Mutant alleles are solely derived from the wildtype allele

b. Mutant alleles are the same as polymorphic alleles

c. Mutant alleles are associated with abnormality

d. Polymorphic alleles are gene-specific, mutants are not.

4. Which of the following is the best example of uniparental disomy?

a. A zygote with half maternal and half paternal chromosome

b. An individual with two parental copies of chromosome

c. A zygote with trisomy 15

d. An individual with down syndrome