Heterometry

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  • Created by: rosieevie
  • Created on: 08-11-18 14:04

1. Why is it a disadvantage to posses organs that have no benefit?

  • The gene responsible for the redundant organ is subject to mutation
  • All of the above
  • They can be attacked by parasites
  • They can be susceptible to tumour formation
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2. What is the gene involved in eyespot formation?

  • Sonic hedgehog
  • Eye-less
  • Distal-less
  • Pax6

3. Define heterometry

  • Evolutionary change in developmental timing
  • Evolutionary change in the size, amount or concentration of a 'thing'
  • Evolutionary change in the spatial arrangement of development
  • Evolutionary change of a 'thing' produced

4. Brain size in humans c.f. chimps is not real heterometry

  • False
  • True

5. Which type of negative heterometry is categorised as total?

  • Shift from presence to absence
  • Structures made into vestigal forms
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