Quote Originally Posted by kc261 View Post
For example, if we are breeding an albino x spider, you would list AAss for the albino, and aaSs for the spider. You can skip pastel, because it doesn't come into play at all. That way the offspring show up as AaSs or Aass rather than AS or As, which could make it look like the albino and spider genes are paired on the same allele, even though they aren't.
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Be careful; this might confuse people. Each parent can only contribute one allele of the homologous allele pair that they have. So AAss can only contribute As. That's it. aaSs can contribute either aS or as--equal odds. So you will have offspring that are either AaSs or Aass. If that's what you meant, then you hit it.