Question

multipart: read the following information, then use it to answer questions 15 and 16. \free earlobes\ (e) are dominant over \attached earlobes\ (e). the father is heterozygous for the type of ears he has while the mother is homozygous recessive. 15. create a punnett square that shows the cross between these two parents.

Explanation:

Step1: Determine the genotypes of the parents

The father is heterozygous, so his genotype is \(Ee\). The mother is homozygous recessive, so her genotype is \(ee\).

Step2: Fill in the Punnett square

The father can produce two types of gametes: \(E\) and \(e\). The mother can only produce \(e\) gametes.

• In the top - left box (where \(E\) from father and \(e\) from mother meet): \(E\times e = Ee\)
• In the top - right box (where \(e\) from father and \(e\) from mother meet): \(e\times e=ee\)
• In the bottom - left box (where \(E\) from father and \(e\) from mother meet): \(E\times e = Ee\)
• In the bottom - right box (where \(e\) from father and \(e\) from mother meet): \(e\times e = ee\)

Answer:

	\(E\)	\(e\)
\(e\)	\(Ee\)	\(ee\)