In a "silent" mutation, the
A. mutation is not in DNA.
B. codon that mutates does not cause a change in the amino acid specified.
C. mutation does not occur in a codon.
D. codon that mutates causes a stop codon to occur instead of the placement of an amino acid.
E. codon that mutates causes a change in the amino acid specified.
Answer: B. codon that mutates does not cause a change in the amino acid specified.
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When a small, polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane, the process is known as
A. simple diffusion. B. channel-mediated diffusion. C. carrier-mediated diffusion. D. active transport. E. endocytosis.
In order to slow generation of product from a particular biochemical pathway within a cell, the intermediates formed by that pathway
A) become toxic to the cell. B) accumulate inside the cell. C) are removed from the cell more quickly. D) are rapidly converted into.
From superior to inferior, the major branches of the abdominal aorta are:
What will be an ideal response?
Which of the following properties of smooth muscle helps us to understand why, as pregnancy advances, women get more and more Braxton-Hicks (smooth muscle) contractions in the uterine wall?
A. Smooth muscle cells contract in response to changes in pH. B. Smooth muscle cells contract in response to NO. C. Smooth muscle cells contract in response to stretch. D. Smooth muscle cells contract in response to CO2.