Consider a mutation in which the change is from UAC to UAU. Both codons specify the amino acid tyrosine. Which type of point mutation is this?
A) silent mutation
B) nonsense mutation
C) missense mutation
D) frameshift mutation
Answer: A
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Diane Dodd raised different fruit fly populations on different food sources. She found that after about 40 generations the evolution of reproductive isolation was under way. The mechanism of evolution responsible for this was
A) natural selection. B) genetic drift. C) gene flow. D) hybridization.
Washing dishes in the dishwasher with detergent and hot water is a ________ process
A) antiseptic B) disinfecting C) sterilizing D) sanitizing E) degerming
Rank these plant types from those that undergo senescence soonest after seed germination to those that live longest.____ biennial____ herbaceous perennial____ woody perennial____ annual
What will be an ideal response?
Which molecule would be an indicator of fungal contamination in a drug preparation?
A. Deoxyribose B. Chitin C. Lignin D. Collagen E. Cellulose