Question detail
Why is the triplet nature of codons important for genetic variation?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reproduction
Question
- A. It allows for more possible amino acids.
- B. It reduces the chance of harmful mutations.
- C. It ensures each amino acid is encoded by a single codon.
- D. It makes the genetic code redundant.
Answer
The correct option is It reduces the chance of harmful mutations.. This answer is correct because it matches the approved learning objective to explain that a sequence of three bases codes for a particular amino acid in the subtopic DNA structure (biology only).
Explanation
The correct option is It reduces the chance of harmful mutations.. It reduces the chance of harmful mutations. is correct because it directly supports the approved learning objective to explain that a sequence of three bases codes for a particular amino acid. This belongs to the subtopic DNA structure (biology only) within Reproduction, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from DNA structure (biology only).
Common mistake
Misunderstanding Base Sequences
Students often confuse the concept of a sequence of three bases coding for an amino acid with the idea that each base individually codes for an amino acid.
Emphasize that it is the triplet of bases that codes for a specific amino acid, not each base on its own.
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