bsci106 quiz 2 answers

bsci106 quiz 2 answers - 1. Pseudogenes in Class II...

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Unformatted text preview: 1. Pseudogenes in Class II olfactory receptors are common in whales because purifying selection is not effective in removing disruptive mutations from these genes. TRUE 2. Natural selection is the only process that can lead to evolution. FALSE 3. Stabilizing selection can be identified because it shifts the mean phenotype of a population. FALSE 4. Parsimony is the process used to describe traits that have diverged by disruptive selection. False 5. Synonymous mutations accrue more slowly than non-synonymous ones because synonymous changes in DNA can strongly affect individual fitness and are more often removed by selection. FALSE 6. Mimicry of the monarch butterfly by the viceroy evolved by disruptive selection. FALSE 7. Generally, phylogenies created from molecular data match those created from fossil data. TRUE 8. The successful use of the Drosophila version of a homeobox gene to fix a defective version in mice suggests that these genes are conserved across highly divergent animal taxa. TRUE 9. Since mitochondria DNA evolves rapidly compared to other types of DNA, it is best used for estimating ancient divergences. FALSE 10. All gene duplications lead to the production of new genes. FALSE ...
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This note was uploaded on 02/19/2011 for the course BSCI 106 taught by Professor Porter during the Spring '08 term at Maryland.

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