Antibodies are attached to the surface of a B cell by
A) the light chain of the arm of the antibody.
B) the stem of the antibody.
C) mucus.
D) the heavy chain of the arm of the antibody.
E) sticky proteins produced by T cells.
B
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What kind of bonds hold the two strands of the DNA molecule together?
a. glycosidic b. phosphodiester c. hydrogen d. tetravalent
The term that is the culmination of coitus is ____
a. sexual arousal b. fertilization c. ejaculation d. orgasm e. sexual intercourse
What was the basis on which prokaryotes were split into two domains?
a. according to differences in cell membrane properties b. according to differences in cell wall composition c. according to differences in staining characteristics d. according to differences in rRNA sequences
Screening for Grave's Disease includes hormones such as _____.
Fill in the blank(s) with the appropriate word(s).