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5.1 Inheritance

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Question 41

Bacteria can be genetically engineered to produce human growth hormone.

The statements below describe four stages in this process in random order:

  • I: The human growth hormone gene is isolated and cut from human DNA.
  • II: The host bacteria are grown in a fermenter where they multiply and produce human growth hormone.
  • III: The isolated gene is inserted into a bacterial plasmid, forming a recombinant plasmid.
  • IV: The recombinant plasmid is taken up by host bacterial cells.

What is the correct order of these stages?

A

I, III, IV, II

B

I, IV, III, II

C

III, I, IV, II

D

IV, I, III, II

Markscheme

5.1 Inheritance Questions

  1. GCSE
  2. /Biology
  3. /5.1 Inheritance

97 exam-style questions on OCR GCSE Biology 5.1 Inheritance, covering 5.1.1 The genome, 5.1.2 Environment and phenotype, 5.1.3 Variants and mutations, 5.1.4 How genetic variants influence phenotype, 5.1.5 Asexual and sexual reproduction, 5.1.6 Haploid and diploid, 5.1.7 Meiotic cell division, 5.1.8 Single gene inheritance, 5.1.9 Predicting single gene crosses, 5.1.10 Sex determination, 5.1.11 Multiple gene inheritance, and 5.1.12 Development of our understanding of genetics. Each one has a worked solution and a mark scheme showing where the marks go.

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