The diagram shows a model involving DNA - HSC - SSCE Biology - Question 23 - 2015 - Paper 1
Question 23
The diagram shows a model involving DNA.
(a) What process is being modelled?
(b) Identify TWO structural features of the DNA molecule which are NOT shown in this m... show full transcript
Worked Solution & Example Answer:The diagram shows a model involving DNA - HSC - SSCE Biology - Question 23 - 2015 - Paper 1
Step 1
What process is being modelled?
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Answer
The process being modelled is DNA replication. This process involves the unwinding of the DNA double helix and the synthesis of new complementary strands by the enzyme DNA polymerase, allowing for the duplication of the genetic material.
Step 2
Identify TWO structural features of the DNA molecule which are NOT shown in this model.
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Answer
Double Helix Structure: The model does not depict the characteristic double helical structure of DNA, which consists of two long strands coiled around each other.
Antiparallel Orientation: The model does not illustrate the antiparallel orientation of the two strands, where one strand runs in the 5' to 3' direction and the other in the 3' to 5' direction.
