The building blocks of nucleic acids are
A. glycerol molecules.
B. amino acids.
C. None of the answer choices is correct.
D. nucleotides.
E. glucose molecules.
D. nucleotides.
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Assume that an mRNA molecule beginning with an AUG is made that is complementary to this DNAsequence:3
'?CTTACATGGCATCC?5' See the genetic code table above. The second codon (counting the start codon as the first codon) directs incorporation of which amino acid in the polypeptide?
a. asparagine b. tyrosine c. arginine d. proline e. cysteine
When the size of a population greatly exceeds K, it would be expected the population will:a
rapidly increase. b. slowly increase. c. slowly decrease. d. rapidly decrease. e. stabilize.
Which of the following would be least likely to form a fossil?
a. a marine organism b. an organism living in a lake c. an animal with an exoskeleton d. an animal with an endoskeleton e. an organism in the tropical rain forest
Cancer is the product of a mutation that
a. brings about stunted growth and severe pain b. causes a translocation in a pair of chromosomes c. changes the structure of hemoglobin in the blood d. causes the uncontrolled growth of cells