F225.1.2- Genetic Techniques

OCR Human Biology

F225 :)

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1. What is a minisatellite?

  • A section of DNA containing a short series of bases.
  • A region of gene that is not translated into a protein.
  • A region of gene that is translated into a protein.
  • A section of DNA containing a large series of bases.
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2. What happens during the denaturation phase of PCR?

  • DNA polymerase adds free nucleotides to the unwound DNA.
  • The primers bind to the DNA.
  • High temperatures disrupt the hydrogen bonds holding the bases together.
  • DNA is cooled and mixed with primers.
  • The double-stranded section of the DNA is extended.

3. At what stage are embryos implanted into a surrogate during genetic engineering in eukaryotes?

  • 4 cell stage
  • 16 cell stage
  • 8 cell stage
  • 2 cell stage
  • Straight after fertilisation

4. Which type of gene therapy is illegal in the UK?

  • Germ cell
  • Somatic cell

5. Which technique involves placing sections of a genome into bacterial artificial chromosomes (BACs) and transferring them into E. coli cells?

  • Human Genome Project
  • Polymerase Chain Reaction
  • Gene therapy
  • Gel electrophoresis
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