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Cloning and biotechnology

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Question 23

Yeast cells can be genetically engineered to produce human serum albumin (HSA) for clinical use.

In a biotechnology laboratory, a culture of Saccharomyces cerevisiae was treated to take up recombinant plasmids using electroporation. Statistical analysis of the treated culture showed:

  • 1 in 160 yeast cells successfully took up a plasmid.
  • 1 in 625 of the plasmids taken up by the yeast cells contained the functional HSA gene.

Calculate the percentage of the total yeast population that successfully took up a plasmid containing the functional HSA gene. Show your working.

[2]
Markscheme

Cloning and biotechnology Questions

  1. A Level
  2. /Biology
  3. /Cloning and biotechnology

39 exam-style questions on OCR A A Level Biology Cloning and biotechnology. Each one has a worked solution and a mark scheme showing where the marks go.

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