Four of the five structures listed below are
functionally connected to each other. Select the
exception.
a. hammer
b. pinna
c. stirrup
d. anvil
e. oval window
Answer: b
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Epidermolysis bullosa is a rare genetic disorder:
A. of a keratin gene that disrupts intermediate filaments, weakening epidermal cell connections. B. of a microfilament gene that disrupts desmosomes, weakening epidermal cell connections. C. of an intermediate filament gene that disrupts hemidesmosomes, weakening epidermal cell connections. D. of a keratin gene that disrupts microfilaments, weakening epidermal cell connections. E. All of these choices are correct.
While you are riding the ski lift up to the top of the mountain on a very cold day you start to shiver involuntarily. You know that the shivering is your body?s attempt to help regulate your body temperature and is an example of what type of mechanism?
A. sensitivity B. evolutionary adaptation C. homeostasis D. energy utilization
You want to design a repressor protein mutant. Which protein domain is the best target for preventing binding of the corepressor?
A) DNA-binding domain B) allosteric domain C) promoter domain D) helix-turn-helix domain E) activator binding site
How fast a population grows depends only on its birth rate
a. true b. false