Another BIOLOGY ? - Biology Forum

last updated by

woolleyy 16 years, 10 months ago

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- November 28, 2007 at 3:27 am #8665
  glxvr6turbo
  Participant
  1. A sex linked gene ‘c’ produces red-green color blindness in humans. A normal woman whose father is color-blind marries a color-blind man. What genotype(s) are/is possible for the mother of the color-blind man she has married?
  a. What are the chances that the first child from this marriage will be a color-blind boy?
  b. Of the daughters of these parents, what fraction are expected to be color-blind?
- November 28, 2007 at 12:21 pm #78635
  woolleyy
  Participant
  1. The mother must carry the colour blindness gene
  a. 1/1
  b. 1/4
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