2. What are the chemical components of a DNA nucleotide? _______a. a phosphate, a sugar, and a nitrogenous baseb. a phosphate, a nitrogenous base, and an amino acidc. a nitrogenous base, a sugar, and an amino acidd. a nitrogenous base, ATP, and a sugar3. The two strands of a DNA molecule are held together by hydrogen bonds between the: _______a. phosphate groups on each strandb. nitrogenous bases on each strandc. bases and the phosphate-sugar backboned. carbon atoms in the sugars
Question
- What are the chemical components of a DNA nucleotide? _______a. a phosphate, a sugar, and a nitrogenous baseb. a phosphate, a nitrogenous base, and an amino acidc. a nitrogenous base, a sugar, and an amino acidd. a nitrogenous base, ATP, and a sugar3. The two strands of a DNA molecule are held together by hydrogen bonds between the: _______a. phosphate groups on each strandb. nitrogenous bases on each strandc. bases and the phosphate-sugar backboned. carbon atoms in the sugars
Solution
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The chemical components of a DNA nucleotide are: a phosphate, a sugar, and a nitrogenous base. So, the correct answer is a. a phosphate, a sugar, and a nitrogenous base.
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The two strands of a DNA molecule are held together by hydrogen bonds between the nitrogenous bases on each strand. So, the correct answer is b. nitrogenous bases on each strand.
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