Question

question 29
1 pts
jack and jill were brother and sister, but didnt look at all. jack had attached earlobes (recessive) and jill had free earlobes (dominant). jill knew her parents were heterozygous for earlobe shape, so she drew the following punnett square:

	e	e
e	ee	ee

what is the probability of offspring with attached earlobes like jack?
○ 75%
○ 50%
○ 0%
○ 25%

Explanation:

Step1: Identify recessive genotype

Attached earlobes are recessive, so genotype is $ee$.

Step2: Count Punnett square outcomes

From the Punnett square, the possible offspring genotypes are: $EE$, $Ee$, $Ee$, $ee$. Total outcomes = 4.

Step3: Calculate probability

Probability = $\frac{\text{Number of } ee \text{ outcomes}}{\text{Total outcomes}} = \frac{1}{4} = 25\%$

Answer:

25%