객관식
In DNA replication, what enzyme unwinds or “unzips” the parental double-stranded DNA at the replication fork?
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1. Introduction to Biochemistry
Nucleic Acids
객관식
In nucleic acids and energy metabolism, both ADP and ATP are nucleotides. Which three components make up both ADP and ATP?
A
Adenine, ribose, and phosphate group(s)
B
Adenine, ribose, and a fatty acid tail
C
Adenine, deoxyribose, and phosphate group(s)
D
Guanine, ribose, and phosphate group(s)
검증된 단계별 안내1
Understand that both ADP (adenosine diphosphate) and ATP (adenosine triphosphate) are nucleotides involved in energy metabolism and nucleic acids.
Recall that a nucleotide is composed of three main components: a nitrogenous base, a sugar, and one or more phosphate groups.
Identify the nitrogenous base in ADP and ATP, which is adenine, a purine base.
Recognize the sugar component in ADP and ATP is ribose, a five-carbon sugar found in RNA nucleotides (not deoxyribose, which is found in DNA).
Note that ADP and ATP differ in the number of phosphate groups attached, but both contain phosphate group(s) as part of their structure.
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