A base substitution will lead to a frame-shift mutation.
Answer the following statement true (T) or false (F)
False
A base substitution will NOT lead to a frame-shift mutation but a point mutation.
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Which of the following is nota function of EF-G in bacterial translation?
A. the hydrolysis of GTP B. the mediation of elongation C. the separation of the ribosome from the mRNA at termination D. the hydrolysis of the terminal peptidyl-tRNA bond
A mutation that changes a codon sequence, and subsequently changes the amino acid that should have been placed at that point in the polypeptide chain, is a
A) frameshift mutation. B) missense mutation. C) silent mutation. D) nonsense mutation.
Recently, consumption of trans fatty acids has been linked to high blood cholesterol levels and increased risk of heart disease. The food industry has responded by decreasing use of "trans fats."
Consider the following questions: (a) How do the structures and transition temperatures of trans, cis, and saturated fatty acids differ, and what are the effects on membrane fluidity? (b) Are trans fatty acids abundant in nature? (c) The major source of trans fats is hydrogenated oils. (The trans fats are produced by a side reaction during the hydrogenation process.) Why has the food industry used synthetically produced hydrogenated oils? What will be an ideal response?
An organism that is heterozygous for two traits can produce a maximum of ________ different gametes for these traits.
A. four B. four; only if they are on different chromosomes C. eight D. two E. two; if they are on the same chromosome