Which of the following statements about tRNA is FALSE?
A. tRNAs of both eukaryotes and prokaryotes share common features.
B. The two-dimensional structure of tRNAs exhibits a cloverleaf pattern.
C. tRNAs are produced in the nucleus.
D. functional tRNAs have been spliced by splicesomes.
E. tRNAs possess an anticodon complementary to the codon.
D. functional tRNAs have been spliced by splicesomes.
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Amino acids are linked together by peptide bonds in a ____
A. starch. B. polypeptide. C. polysaccharide. D. nucleic acid. E. phospholipid.
The immunoglobulin associated with Type I hypersensitivity is
A. IgG. B. IgA. C. IgM. D. IgE. E. IgD.
"Cole" refers to any of various plants belonging to the Cruciferae or mustard family, which include broccoli, cabbage, collard greens, and other familiar vegetables
The controlled breeding of cole crops to produce certain physical traits in those organisms is called A) artificial selection. B) natural selection. C) agricultural selection. D) physical selection.
In a particular DNA sequence, nonsynonymous substitutions occurring at a lower rate than synonymous substitutions would be evidence for
a. neutral evolution. b. negative selection. c. genetic hitchhiking. d. positive selection. e. mutational bias.