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Dominant Recessive Sampling Background Info


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Dominant Recessive Sampling Model

What does this model?

This is a simple system model that demonstrates passing on a recessive allele to one's offspring. Genotypes from parents are calculated via random numbers, which consequently determine the expression (or lack thereof) of the recessive allele in their kid. If, by random chance, both parents pass on the recessive allele, their kid will exhibit that recessive trait. This can be tied to the inheritance of recessive genetic disorders in real life. When one recessive trait is very rare, the chance of it being expressed is even more so, since the dominant allele will always "wins out" against the recessive. There are no inputs for this model, but it may be run multiple times to gain a better understanding of the concepts surrounding allelic patterns.

What can this Model be used to teach?

  • Explore dominant versus recessive alleles and the role they play in genetics
  • Interpreting graphs of differing sample sizes and the importance of the Law of Large Numbers
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