Pick up the example of a dinucleotide:
Correct answer: D. NAD
- A. ATP
- B. ADP
- C. GTP
- D. NAD
Explanation
The correct answer is NAD. Nicotinamide adenine dinucleotide (NAD) is a dinucleotide, which means it is composed of two nucleotide units. It includes an adenine nucleotide and a nicotinamide nucleotide. NAD functions as a coenzyme in various redox reactions, helping in electron transport during metabolic processes.ATP, ADP, and GTP are all single nucleotides and do not fit the definition of a dinucleotide. Unlike NAD, which is vital in electron transfer, these nucleotides are primarily involved in energy transfer and other cellular activities.
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