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 is the biological process of producing two identical replicas of DNA from one original DNA molecule.
Step 2
IDENTIFY TWO structural features of the DNA molecule which are NOT shown in this model.
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Answer
The double helix structure - This feature describes how the two strands of DNA twist around each other, forming a helical shape.
The sugar-phosphate backbone - This is the structural framework of nucleic acids, composed of alternating sugar and phosphate groups that form the sides of the DNA ladder.