1. Several independent species evolve a new body shape from a mutation in the same gene. This is an example of:
a. Parallel evolution
b. Parsimony
c. Mosaic evolution
d. Vicariance - ANSWERSa
2. Why was DNA an unlikely candidate for the first information bearing molecule in living systems?
...
Quizzes for Evolution Exam #1
Questions & Answers
1. Several independent species evolve a new body shape from a mutation in the same
gene. This is an example of:
a. Parallel evolution
b. Parsimony
c. Mosaic evolution
d. Vicariance - ANSWERSa
2. Why was DNA an unlikely candidate for the first information bearing molecule in living
systems?
a. DNA is unable to catalyze reactions
b. DNA cannot store and transmit genetic information
c. Nucleic acids like DNA cannot be synthesized by abiotic reactions
d. Most living systems do not transmit genetic information through DNA - ANSWERSa
3. Which is the likely explanation for why rates of evolution tend to be higher over short
intervals than over long intervals?
a. The direction of evolution reverses often, which tends to average out any evolutionary
change.
b. Most species that have high rates of evolution go extinct, so those that are around for
a long time have lower rates of evolution.
c. Mutations become more important as species evolve over time.
d. Natural selection is only an important factor in evolution for short amounts of time. -
ANSWERSa
4. Because selection acts on individuals, different phenotypic characteristics tend to
evolve at a similar rate
True or False - ANSWERSFalse
5. Self-replicating proteins are the most likely candidate for the first information
bearing molecule in living systems.
True or False - ANSWERSFalse
1.The presence of competitors tends to enable species to expand their geographic
range
True or False - ANSWERSFalse
2. Diversification rate can be calculated from a phylogeny as:
a. The ratio of (ln) species diversity to clade age.
b. The number of branches on the phylogeny.
c. The time to the most recent common ancestor of all species on the phylogeny.
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