Which of the following mutant alleles is most likely to be dominant to the wild-type allele?
A) a silent mutation
B) a premature stop codon that results in a partial loss of protein function
C) a missense mutation that increases enzyme activity
D) a promoter mutation that reduces gene transcription
C) a missense mutation that increases enzyme activity
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Name any checkpoint gene
What will be an ideal response?
Which of the following is most likely to be preserved as a fossil?
A. a complete large organism B. an organ like an eye or lung C. an organism that died on land D. a leaf or stem E. a bone or shell
Why are fats a better source of energy than carbohydrates on a per carbon basis?
a. Fats are comprised of other atoms besides carbon and oxygen that increase its ATP yield. b. Fats have more hydrogenbound in its fatty acid chains, which allows them to react more with oxygen. c. Fats do not completely break down, and the by-products increase ATP yield. d. Fats require fewer reactions with oxygen to completely break down, thus increasing its ATP yield. e. Fats require more reactions with oxygen to completely break down.
The mode of action of an antimicrobial agent refers to
A) killing of all microorganisms. B) inhibition of growth of bacteria. C) how it exerts its effects upon microorganisms. D) the broad spectrum of activity of the antimicrobial agent