The pyruvate dehydrogenase complex oxidizes and cleaves pyruvate to form one CO2 and
A. lactate.
B. isocitric acid.
C. succinyl-CoA.
D. acetyl-CoA.
Answer: D
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The "charging" or activation of a tRNA molecule includes:
A. the covalent attachment of an amino acid to the 3'-terminal cytosine of the tRNA. B. the covalent attachment of the amino group of an amino acid to the tRNA. C. the covalent attachment of the carboxyl group of an amino acid to the tRNA. D. the covalent attachment of an amino acid to the 5'-terminal adenosine of the tRNA.
What are the common characteristics of all eukaryotic cells?
A. nucleus, B. cell membrane, C. cytoplasm D. All of the above
The percentage of different colored water boatmen eaten by fish were graphed relative to the frequency of that color in the population. Based on the graph, a population of water boatmen would _____
A. increase in rare genotypes.
B. have no variation in genotype frequencies.
C. lose rare genotypes.
D. increase in size.
E. decrease in genetic variability.
Fishes with no teeth, jaws, or vertebrae are in the category of?
A) sharks B) jawless C) bony D) cartiligiinous