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Edexcel Biology B ( AS level ) QP 2

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Edexcel Biology B ( AS level ) QP 2

Institution
PEARSON (PEARSON)
Course
Exams

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1 A forensic scientist collected DNA samples from a crime scene and from three

suspects. The DNA samples were processed and analyzed using gel

electrophoresis.

The results are shown in the diagram.
DO NOT WRITE IN THIS AREA




(a) (i) Name the type of enzyme used to cut DNA into fragments during DNA

profiling.

(1)

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, (ii) Explain how these enzymes cut DNA.




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(2)
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(b) Describe the process of gel electrophoresis used to separate DNA fragments.

(3)
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Study Level
A/AS Level
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PEARSON (PEARSON)
Subject
Biology
Unit
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Uploaded on
April 16, 2026
Number of pages
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Written in
2025/2026
Type
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Subjects

  • edexcel
  • biology
  • level
  • b
  • as
  • qp
  • 2
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