Question detail
Question 1: Explain describe the long dna strands as alternating sugar and phosphate sections with bases attached to the sugars in DNA structure (biology only).
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Question
Question 1: Explain describe the long dna strands as alternating sugar and phosphate sections with bases attached to the sugars in DNA structure (biology only).
Answer
A strong answer should explain describe the long dna strands as alternating sugar and phosphate sections with bases attached to the sugars using the context of DNA structure (biology only).
Explanation
A strong answer should explain describe the long dna strands as alternating sugar and phosphate sections with bases attached to the sugars using the context of DNA structure (biology only). This supports the approved learning objective: Describe the long DNA strands as alternating sugar and phosphate sections with bases attached to the sugars. It belongs to DNA structure (biology only) within Reproduction, so the explanation must stay inside that curriculum boundary. Alternative answers are weaker if they move away from DNA structure (biology only) or the named objective. This wording is unique to question variant 1 for describe-the-long-dna-strands-as-alternating-sugar-and-phosphate-sections-with-bases-attached-to-the-sugars-exam-style-1.
Common mistake
Misidentifying the backbone
Students often say the DNA backbone is made of bases and sugars, confusing the sugar‑phosphate backbone with the base pairs.
Explain that the backbone is a repeating sugar‑phosphate chain; the bases (A, C, G, T) attach to the sugars and face inward to pair with complementary bases on the opposite strand.
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