In base pair between a guanine and a cytosine, ________ hydrogen bonds form between a partially positive hydrogen on the guanine and a more electronegative atom on the cytosine
A) 4 B) 3 C) 1 D) 0 E) 2
Answer: E
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Which of the following does NOT correctly describe antidiuretic hormone?
A. It regulates water turnover in the mammalian kidney. B. ADH secretion is stimulated by high blood osmolarity. C. It ultimately acts to reabsorb more water. D. It exerts it effects via the cAMP pathway. E. It does not involve the use of aquaporin molecules.
Which of the following is an unusual event that occurs as trichomes differentiate?
a. DNA replication b. endoduplication c. cell expansion d. mitosis e. regulation of the cell cycle
How did chromosomes get their name?
What will be an ideal response?
A superinfection results from
A) An immune system reaction to the drug. B) Decrease in most normal flora with overgrowth of an unaffected species. C) All of these choices are correct D) The wrong drug administered to the patient. E) Build up of a drug to toxic levels in the patient.