Questions and Answers Part 6 9 3

Questions and Answers Part 6 9 3 - 1. Members of a...

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1. Members of a collection of organisms in a scientist’s laboratory share a common genotype and display a common detectable phenotype compared to wild-type. This collection is best described as: a) An evolving population b) A mutant strain c) A mutagenized strain d) Reproductively less fit than wild-type e) Present in the lab population at a frequency less than 1% Answer b. A mutant strain 2. Which of the following statements is correct about the bases in DNA under normal circumstances: a) Adenine should pair with thymine. b) The bonds holding guanine and cytosine together are stronger than the bonds holding adenine and thymine together. c) A purine always binds to a pyrimidine. d) A substitution of adenine for guanine is a transition mutation. e) All of the above Answer e. All of the above 3. Which of the following represents a correct or acceptable phrase in genetics? a) Mutant protein b) Protein mutation c) DNA mutation d) A and c e) All of the above Answer d. A and c 4. Lysine and arginine are two amino acids with similar sized “R” (side-)groups and similar biochemical behavior (for example, both are basic residues). A mutation results in substitution of
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This note was uploaded on 09/26/2009 for the course BIS 98659 taught by Professor Kimbrell during the Summer '09 term at UC Davis.

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Questions and Answers Part 6 9 3 - 1. Members of a...

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