Each adenine-thymine base pair has ________ hydrogen bonds, while each guanine-cytosine base pair has ________ hydrogen bonds

A) two / one
B) two / three
C) four / three
D) three / two


Answer: B

Biology & Microbiology

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Fill in the blank(s) with the appropriate word(s).

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Most CO2 is transported to the lungs in which of the following ways?

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The BOD is a measurement of the amount of bacteria present before and after the sewage treatment process

Indicate whether the statement is true or false

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Alternative exons can arise through the duplication and divergence of existing exons. What type of mutation below would be least tolerated during the evolution of a new exon?

(a) a nucleotide change of A to G (b) a deletion of three consecutive bases (c) mutation of the first nucleotide in the intron (d) a nucleotide change that alters a TT dinucleotide to AA

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