The receptor for a peptide hormone _______.
a. sits in the cell's outer membrane and binds to a hydrophobic hormone
b. sits in the cell's outer membrane and binds to a hydrophilic hormone
c. sits inside the cell and binds to a hydrophobic hormone
d. sits inside the cell and binds to a hydrophilic hormone
Answer: b. sits in the cell's outer membrane and binds to a hydrophilic hormone
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DNA isolated from Aspergillis has an adenine content of 25%. Based upon this information, what is the %G + C within the Aspergillis DNA?
A) 0% B) 25% C) 50% D) 75% E) The answer cannot be determined from this information.
A proto-oncogene ____
a. always becomes cancerous b. causes cancer c. encodes tumor-suppressing proteins d. repairs DNA e. regulates cell division
The two strands of a DNA double helix are held to each other by ____ bonds between nitrogenous bases
a. phosphodiester b. disulfide c. glycosidic d. hydrogen e. peptide
Which of the following microbes are most commonly the causative agent in healthcare-associated infections?
a. Hepatitis B viruses b. Gram-negative intestinal biota c. Acid-fast mycobacterium d. Gram-positive cocci