Question

punnett squares
the use of punnett squares is crucial in predicting the likelihood of an individual inheriting
certain traits from their parents.
researchers can calculate the probability of particular genetic combinations and better
understand the patterns of inheritance for certain traits.
the punnett square below exhibits that both parents have (aa) alleles, resulting in a 100%
chances of (aa) and zero chance of any other combination.
when looking at the image, which statement is true?
the probability of \aa\ is 100%.
the probability of \aa\ is 25%.
the probability of \aa\ is 50%

Explanation:

Step1: Analyze the Punnett square

The Punnett square shows that all four offspring combinations are "aa".

Step2: Calculate the probability

The formula for probability is \(P=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\). Here, the number of favorable outcomes (offspring with "aa") is 4, and the total number of outcomes is 4. So \(P = \frac{4}{4}=1\) or 100%.

Answer:

The probability of "aa" is 100%.