If the base in a DNA strand is changed from cytosine to adenine, the base pair in mRNA is 

A. uracil.
B. cytosine.
C. thymine.
D. guanine.


A. uracil.

Biology & Microbiology

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The second edition of Bergey's manual groups pathogenic species together rather than in phylogenetic groups.

Answer the following statement true (T) or false (F)

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In proteins, structural segments called ____ provide flexibility that allow parts of the protein to bend, fold, or move

a. random coils b. peptide bonds c. b sheets d. a helices e. b polysaccharides

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Maintaining the volume and composition of extracellular fluid is an essential aspect of __________. Fill in the blank(s) with the appropriate word(s)

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The step of translation in which release factors bind to a stop codon is:

mitosis. termination. initiation. elongation. transcription

Biology & Microbiology