Question:
Which of the following forms regarding the structure of a DNA molecule is true?
Which of the following forms regarding the structure of a DNA molecule is true?
Show Hint
Watson and Crick described DNA as two strands coiled around a common axis.
Updated On: Nov 12, 2026
- Linear
- Branched
- Single helix
- Double helix
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
The Watson and Crick model describes the three-dimensional structure of DNA.
Step 2: Structure
Two complementary polynucleotide chains run in opposite directions and coil around a common axis.
Step 3: Compare the options
This is a double helix, option (D).
Final Answer:
DNA has a double helix structure. \[ \boxed{\text{(D) }\text{Double helix}} \]
The Watson and Crick model describes the three-dimensional structure of DNA.
Step 2: Structure
Two complementary polynucleotide chains run in opposite directions and coil around a common axis.
Step 3: Compare the options
This is a double helix, option (D).
Final Answer:
DNA has a double helix structure. \[ \boxed{\text{(D) }\text{Double helix}} \]
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