The hormone that is the basis of most pregnancy tests is
A. follicle-stimulating hormone.
B. luteinizing hormone.
C. human chorionic gonadotropin.
D. estrogen.
E. progesterone.
C. human chorionic gonadotropin.
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A phylogenetic tree is actually a ____________ that depicts the evolutionary relationships among species.
A. drawing B. hypothesis C. theory D. paraphylogy E. monophylogy
Which term best describes the nitrogenous base adenine plus the sugar ribose?
A) adenine B) adenosine C) adenosine diphosphate D) adenosine triphosphate E) C followed by A or B
Killing of graft cells occurs through a complex series of mechanisms including
A. sensitized T cytotoxic cells. B. NK cells. C. erythrocytic cells. D. basophilic cells. E. sensitized T cytotoxic cells AND NK cells.
What type of cells do not undergo mitosis?
A. All cells of the body except gametes (i.e., only somatic cells) B. Gametes C. Both somatic cells of the body and gametes D. Neither somatic cells of the body nor gametes