In a DNA double helix, what kind of chemical bonds form between the complementary nitrogenous bases?
A) polar covalent bonds
B) phosphodiester bonds
C) nitrogen bonds
D) hydrogen bonds
Ans: D) hydrogen bonds
Biology & Microbiology
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What will be an ideal response?
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Enzymes belong to which group of organic molecules?
A. carbohydrates B. lipids C. nucleic acids D. proteins
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Which physiological group of bacteria is a subset of the other?
a. Acetic acid bacteria are a subset of acetogens. b. Acetogens are a subset of acetic acid bacteria. c. Methylotrophs are a subset of methanotrophs. d. Methanotrophs are a subset of methylotrophs.
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