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27 January, 17:00

The ability to roll your tongue is inherited genetically from parents if either parent has the dominant trait T. Children of two parents without the trait will not be able to roll their tongues. Part A: Show how the combinations can be modeled by the square of the sum. Part B: Predict the percent of children that will both have dominant genes, one dominant gene, and both recessive genes

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  1. 27 January, 18:36
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    A. If a person has the genetic combination Tt. Then, half of his/her genes are the dominant trait T and the other half are the recessive trait t. So, his/her genes can be represented by 0.5T + 0.5t. If both parents have the genetic combination Tt, then the outcomes for their children can be modeled by the sum of the square: b. There are four total outcomes. For children to have two dominant genes, they would have TT, which is a 25% probability. For children to have one dominant gene, they would have Tt, which is a 50% probability. For children to have two recessive genes, they would have tt, which is a 25% probability.
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