The antigen-binding fragments (Fab) of antibodies are
a. located in the arm tips of the antibody molecule
b. located in the tail portion of the antibody molecule
c. unique for each antibody so that each antibody can interact only with an antigen that specifically matches it
d. both a and c
e. both b and c
D
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In the reproductive cycle, estrogen ________, whereas progesterone ________.
A. stimulates uterine wall development; stimulates the uterine lining to become more glandular B. inhibits the release of FSH; stimulates the release of FSH C. ejects milk from the mammary glands; stimulates milk secretion D. stimulates erection of the clitoris; stimulates the uterine lining to become glandular
Which of the following is NOT one of the four basic types of tissues found in the human body?
a) epithelial tissue b) connective tissue c) muscular tissue d) necrotic tissue e) nervous tissue
Define neurotransmitter. Name two amino acid neurotransmitters, two catecholamines, and two peptides.
What will be an ideal response?
A small, flat articular surface is a ________.
A) trochlea B) spine C) line D) sulcus E) facet