Question detail
What is the significance of complementary base pairing in DNA?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Amino acids, proteins and DNA (A-level only)
Question
- A. It allows for the formation of peptide bonds
- B. It ensures accurate DNA replication
- C. It stabilizes the sugar-phosphate backbone
- D. It facilitates protein synthesis
Answer
It ensures accurate DNA replication
Explanation
Complementary base pairing between adenine and thymine, and between cytosine and guanine, is crucial for accurate DNA replication, as it allows each strand to serve as a template for the formation of a new complementary strand.
Common mistake
Confusing DNA Nucleotide Components
Students often confuse the components of DNA nucleotides, such as mixing up the sugar and phosphate groups.
Remember that a DNA nucleotide consists of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Clearly label each component when drawing or describing nucleotides.
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