Blood Genetics - Biology Forum

last updated by

Darby 15 years, 7 months ago

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- April 24, 2009 at 4:41 pm #11272
  seders99
  Participant
  I need help getting started on this problem:
  In humans, the ABO and Rh are under the control of autosomal genes. If two parents who are both A positive, produce a child who is type O negative, what is the probability their next child will be type O positive?
  So…where do I start? Do a punnett square? I have a hard time pulling out the info that is needed to anwer the quesiton.
- April 27, 2009 at 1:08 am #90399
  plasmodesmata11
  Participant
  Yes, I’d do a punnet square…
  Set up a dihybrid cross, then check the resulting genotypes and their percentages
- May 3, 2009 at 3:49 pm #90558
  sanjidcapa
  Participant
  I need suggestion for Blood Genetics if you visit this site you will get help and better answer.thank you 😆
- May 4, 2009 at 12:15 am #90573
  Darby
  Participant
  Here’s a clue: you should be able to figure out the kid’s alleles, and from that the parent’s alleles.
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