__________ code(s) for a specific trait, but there may be different versions of the trait called
__________.
a. Genes; alleles
b. Alleles; DNA
c. DNA; genes
d. Genes; DNA
A
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Chemical analysis of an unidentified compound isolated from cells showed the presence of carbon, hydrogen, oxygen, nitrogen, and sulfur. This unknown compound is most likely a
A. nucleic acid. B. lipid. C. carbohydrate. D. protein.
__________ a series of enzyme-catalyzed chemical reactions of central importance in all living cells that harvests the energy in carbon-carbon bonds of sugar molecules to generate ATP; the citric acid is an aerobic metabolic pathway because it requires oxygen in later reactions to proceed
Fill in the blank(s) with the appropriate word.
Refer to the figure above. What is the function of the AGU on the loop of the tRNA?
A) It attaches to the amino acid. B) It base pairs with a codon of mRNA. C) It stabilizes the tRNA-amino acid complex. D) It is the active site of this ribozyme.
Contents of the digestive system are moved along by rhythmic contractions and relaxations of smooth muscle. This process is called _________
Fill in the blank(s) with the appropriate word(s)