General unit 5 biology

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  • Created by: Sapphire
  • Created on: 13-06-13 16:24

1. Why are techniques in medical diagnosis being updated and automated?

  • Less people needed to operate the technique
  • All of these reasons
  • Cost effective
  • So can be done on large scale
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2. Somatic therapy- does it involve altering the alleles in the muscle cells, body cells or the sex cells

  • Body cells
  • Sex cells
  • Muscle cells

3. Genetic engineering doesn't involve any manipulation of the organisms DNA at all

  • False
  • True

4. What do antagonistic drugs do to synaptic transmission?

  • inhibits the enzyme that breaks down neurotransmitters
  • They block receptors so they cant be activated by neurotransmitters
  • More receptors are activated as drugs same shape as the neurotransmitters
  • stimulate release of neurotransmitter from presynaptic neurone so more receptors are activated

5. Can a DNA probe be used to look for a single gene or is it used to look for lots of genes at the same time

  • Lots of genes
  • Both
  • Single gene only
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