The Punnett square is a diagram biologists use to determine the probability of o
ID: 3120036 • Letter: T
Question
The Punnett square is a diagram biologists use to determine the probability of offspring having a certain genetic makeup. Suppose “B” represents the gene for brown eyes and “b” represents the gene for blue eyes. In genetics, capital letters refer to dominant traits, so a person receiving both “B” and “b” generally has brown eyes. This diagram shows the possibilities for the child of two Bb parents. Each parent gives the child one of its 2 genes with equal probability.
What is the probability that this child will receive the genetic makeup for brown eyes?
Explanation / Answer
As from the diagram it is quite clear that child will have Brown eyes in 3 out off 4 cases so the Probabilty is 3/4
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