The peptides bound by a single MHC protein share a common
A) C domain.
B) peptide motif.
C) V domain.
D) nucleotide sequence.
Answer: B
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The presence of cytoplasmic membrane-bound organelles is characteristic of ____
a. Archaea only b. Bacteria only c. both Archaea and Bacteria d. neither Archaea nor Bacteria e. Achaea, Bacteria and Eukarya
It is a concern that avian flu could become a _____ with cases spread around multiple continents
Fill in the blank(s) with the appropriate word(s).
Ethanol is an inhibitor of ADH. Therefore, a person
consuming a mixed drink excretes a. less water because ADH promotes reabsorption. b. the alcohol because ADH cannot degrade it. c. ketone bodies formed from the alcohol. d. more water because ADH normally promotes reabsorption. e. more water plus the alcohol due to the ADH inhibition.
The first amino acid that initiates the eukaryotic polypeptide is
a. any amino acid. b. glutamine. c. methionine. d. N-formylmethionine.