Adenine and guanine are nitrogen-containing bases found in nucleic acids
a. True
b. False
Indicate whether the statement is true or false
True
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A(n) ________ is a chemical that can be used to sterilize materials.
A. disinfectant B. antiseptic C. oxidant D. sterilant
Which statement applies to facilitated diffusion?
a. It requires ATP. b. It can involve either carrier proteins or channel proteins. c. It is nonspecific with respect to the nature of the molecules being transported. d. It is not dependent on a concentration gradient.
The rate at which wastes are produced by a cell partially depends on the cell's
A) ratio of surface area to volume. B) type of membrane. C) volume. D) surface area.
Deletions and substitutions are two types of point mutations. Which is more likely to cause mistranslations of proteins?
Substitutions are more likely to cause mistranslations of proteins because they shift the reading frame and cause downstream amino acids to be changed. Deletions are more likely to cause mistranslations of proteins because one protein is deleted. Deletions are more likely to cause mistranslations of proteins because they shift the reading frame and cause downstream amino acids to be changed. Substitutions are more likely to cause mistranslations of proteins because one protein is substituted for another protein. None of the above is correct.