What chemical group is found in a nucleotide but not in a nucleoside?
A.)sugar
B.) nitrogen containing base
C.) pentose
D.) hydroxyl group
E.) phosphate
Ans: E.) phosphate
Biology & Microbiology
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The terms algae and protozoa have significant phylogenetic meaning
A. true B. false
Biology & Microbiology
Whooping cough is caused by ________.
A. Yersinia pestis B. Klebsiella pneumoniae C. Vibrio parahaemolyticus D. Bordetella pertussis
Biology & Microbiology
Consider a protein that is made in the rough ER. You observe that when the synthesis of the protein is completed, the protein is located in the ER membrane. Where else in the cell might this protein be found?
What will be an ideal response?
Biology & Microbiology
Characteristics of good antigens include all of the following EXCEPT ______.
A. large, repetitive molecules B. exotoxins C. whole cells D. viruses
Biology & Microbiology