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During your study of this option you constructed a model of DNA - HSC - SSCE Biology - Question 30 - 2005 - Paper 1

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During your study of this option you constructed a model of DNA. The diagram represents a model made by a student. ![DNA Model](image_path_here) (i) In thi... show full transcript

Worked Solution & Example Answer:During your study of this option you constructed a model of DNA - HSC - SSCE Biology - Question 30 - 2005 - Paper 1

Step 1

In this model, name TWO of the parts labelled X, Y and Z.

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Answer

The two parts labelled in the model are:

  • X: Sugar
  • Y: Phosphate

Step 2

Is this a useful model of a DNA molecule? Support your choice with TWO reasons.

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Answer

Yes, this is a useful model of a DNA molecule for the following reasons:

  1. Representation of Components: The model accurately represents the essential components of DNA, such as the phosphate and sugar backbone, which are crucial for the structural integrity of the molecule.
  2. Visualizing the Double Helix Structure: This model allows for a clear visualization of the double helix structure of DNA, aiding in understanding how the nucleotide bases pair and interact.

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