Question detail
How do complementary base pairs in DNA contribute to its function?
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. They provide structural stability to the DNA molecule
- B. They allow for accurate replication of genetic information
- C. They facilitate protein synthesis
- D. They enhance the energy storage capacity of DNA
Answer
They allow for accurate replication of genetic information
Explanation
Complementary base pairing ensures that during DNA replication, each strand serves as a template for the formation of a new complementary strand, preserving the genetic code.
Common mistake
Linking DNA Structure to Function
Students often state that DNA's structure is only for replication without mentioning its role in information storage.
To fix this, remember that the sequence of bases in DNA encodes genetic information. State the relationship: the order of nucleotides (A, T, C, G) determines the genetic code, which is essential for protein synthesis and heredity.
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