4 An individual whose earlobe shape genotype is homozygous d
4. An individual whose earlobe shape genotype is homozygous dominant has a child with an individual whose genotype is heterozygous. Fill in the following Punnett square correctly, and indicate the percentage likelihood that their child will have a free earlobe phenotype or an attached earlobe phenotype. (Be sure Word doesn’t “autocorrect” your lowercase letters to uppercase or vice versa!)
Solution
Answer:
E- Fee earlobe
e-attached earlobe
EE x Ee
E
E
E
EE (Fee earlobe)
EE(Fee earlobe)
e
Ee(Fee earlobe)
Ee(Fee earlobe)
All the offsprings are of Fee earlobe, none of them are of attached earlobe
| E | E | |
| E | EE (Fee earlobe) | EE(Fee earlobe) | 
| e | Ee(Fee earlobe) | Ee(Fee earlobe) | 

