Dna Structure
Easybiology
In a DNA double helix, the two strands are:
Antiparallel Polarity
Select the correct option:
Solution
Incorrect! Answer:
Antiparallel
- DNA Polarity: The two strands of the DNA double helix run in opposite directions.
- Spatial Arrangement: If one strand runs in the 5′→3′ direction, its complementary partner must run in the 3′→5′ direction.
- Significance: This antiparallel arrangement is essential for base pairing and for the function of DNA polymerase during replication.
- Conclusion: The two strands are antiparallel.
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About This Question
- Subject
- biology
- Chapter
- molecular basis of inheritance
- Topic
- dna structure
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Antiparallel
- DNA Polarity: The two strands of the DNA double helix run in opposite directions.
- Spatial Arrangement: If one strand runs in the 5′→3′ direction, its complementary partner must run in the 3′→5′ direction.
- Significance: This antiparallel arrangement is essential for base pairing and for the function of DNA polymerase during replication.
- Conclusion: The two strands are antiparallel.
This easy difficulty biology question is from the chapter molecular basis of inheritance, covering the topic of dna structure. It appeared in the 2025 exam.
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