Stacey is 5 foot 8 inches tall and weighs approximately 80 pounds, yet she thinks she is very fat. Which of the following statements is probably not true about Stacey?
Select one:
a. Stacey most likely suffers from anorexia nervosa.
b. Stacey is actually starving.
c. Stacey has probably stopped menstruating.
d. Stacey is in danger of dying.
e. Stacey probably binge-eats and then forces herself to throw up.
e. Stacey probably binge-eats and then forces herself to throw up.
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Treponema pallidum
A. is the organism that causes syphilis. B. is a spirochete. C. can be more easily viewed with dark-field illumination. D. has become less virulent over time. E. All of the above are correct.
The immune system consists of ____
a. physical barriers only b. innate immunity only c. adaptive immunity only d. innate and adaptive immunity only e. physical barriers, innate immunity, and adaptive immunity
Mutations that occur in one member of a gene pair that arose from gene duplication may create _____
A) a pseudogene B) a gene with a new function C) a gene family with two distinct but related members D) a pseudogene, a gene with a new function, and a gene family with two distinct but related members
Restriction mapping is used to characterize cloned DNA. What does a restriction map tell the researcher about the cloned DNA?
A) The size of the genome the cloned DNA was isolated from. B) The distances between restriction sites for the specific restriction enzyme. C) The number of sites and distance between them for the specific restriction enzyme. D) The restricted conditions under which the organism can grow. E) The number of restriction sites for the specific restriction enzyme.