Microbiology: Week 11 Quiz. (Exam 3) Test Questions and Answers.

false - Answer Mutations that occur in an organism's DNA may or may not be inherited by the organism's progeny (i.e. daughter cells) false - Answer Spontaneous mutations occur in approximately the same rate as induced mutations true - Answer DNA bases can be mutated, and lead to mismatch pairing in the DNA strand. both A and C are correct - Answer Consider a scenario in which a spontaneous mutation occurs in an organism's DNA. The mutation will likely affect: A. The organism in which the mutation occured B. Both daughter cells of the organism C. One daughter cell D. Both A and B are correct E. Both A and C are correct all of the above - Answer Which of the following mutagens would likely cause mismatches in an organism's DNA? base analogs DNA modifying agents (chemical base alteration) Intercalating agents All of the above 5-bromouracil - Answer Which of the following mutagens highlighted in class acts as a base analog? false - Answer A reversion mutation occurs when a genetic mutation that previously occurs mutates back to its normal original genotype. Missense - Answer Which of the following types of mutations result in a permanent change in the primary amino acid sequence of a protein? false - Answer A conditional mutant is one that cannot synthesize and essential molecule (like an essential amino acid).