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7. spongebob’s aunt is famous around town for her itty, bitty stubby no…

Question

  1. spongebob’s aunt is famous around town for her itty, bitty stubby nose! she recently met a cute squarepants fellow who also has a stubby nose, which is a recessive trait. would it be possible for them to have a child with a regular long nose? why or why not? create a punnett square to help you answer this question.
  1. if spongebob’s aunt described in #7 wanted children with long noses, what type of fellow would she need to marry in order to give her the best chances? create a punnett square to help you answer this question.

Explanation:

Answer:

No, because both have recessive stubby - nose genes (assuming genotype \(nn\) for both). A Punnett square would show all offspring \(nn\) (stubby - nose).
A fellow with a dominant long - nose allele (\(NN\) or \(Nn\)). If \(NN\times nn\), all offspring \(Nn\) (long - nose). If \(Nn\times nn\), 50% \(Nn\) (long - nose).