_______ are large glycoprotein molecules that serve as the specific receptors of B cells and as antibodies.

A) Immunoglobulin molecules
B) Antigens
C) Human cell markers
D) Immunogens


Ans: A) Immunoglobulin molecules

Biology & Microbiology

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The precursor of each new nucleotide in a strand of DNA is a

A) deoxynucleoside 5'-diphosphate. B) deoxynucleoside 3'-diphosphate. C) deoxynucleoside 5'-triphosphate. D) deoxynucleoside 3'-triphosphate.

Biology & Microbiology

Characteristic colonial morphology should include all of the following except:

a. glistening. b. fermenter. c. pinpoint. d. entire.

Biology & Microbiology

Match the choice on the left with the correct choice on the right

A) end-product inhibition B) trypsin C) Lineweaver–Burk plot D) RNA E) zinc F) protein kinases G) distortion of substrate and enzyme 1) double-reciprocal 2) feedback inhibition 3) covalent modification 4) proteolytic cleavage 5) ribozymes 6) prosthetic group 7) induced-fit model

Biology & Microbiology

Which of the following branches of Microbiology is utilized in diagnosing or treating someone who has broken out in hives and is experiencing respiratory distress due to an exposure to a microbial toxin?

A. immunology B. biotechnology C. agricultural Microbiology D. industrial Microbiology E. epidemiology

Biology & Microbiology