1. Which of the following is not
a spontaneous mutation?
a. a deletion
b. an inversion
c. an amino acid
d. a single nucleotide
2. If the probability of
mutation per site is 10-8, which of the two stretches of
DNA is more likely to have a greater chance of spontaneous
mutations: a protein-coding gene that is 2000 base pairs long and
codes for an essential protein or a non-coding stretch of “junk”
DNA that is 2000 base pairs long?
a. Both stretches of DNA are expected to have the same number of
mutations because they are the same length
b. The non-coding “junk” DNA because the mutations have no effect
on the individual
c. The protein-coding gene because mutation can have effects that
helps the individual
d. Impossible to know given the information because mutation is
3. Most of the observable differences among individuals and
species is ultimately the result of a random process called
4. If two individuals reproduce and each of these individuals is
heterozygous (has different alleles) at each of three independent
loci, how many different possible haplotypes are generated?