Question

unattached earlobes are dominant to attached earlobes. cleft chin is dominant to no cleft. parents that are heterozygous for both traits are crossed. determine the genotype of the following offspring. 1 2 3 4 5 ea ea ea ea ea eeaa eeaa 1 eeaa ea 2 3 eeaa eeaa ea eeaa eeaa 4 eeaa ea eeaa eeaa eeaa 5

Explanation:

Step1: Analyze Offspring 1

To find the genotype of offspring 1, we look at the row (EA) and column (eA) of the Punnett square. Combining the alleles from the row (E, A) and column (e, A), we get \( EeAA \).

Step2: Analyze Offspring 2

For offspring 2, we use the row (Ea) and column (EA). Combining the alleles (E, a) and (E, A), we get \( EEAa \).

Step3: Analyze Offspring 3

Offspring 3 is from row (Ea) and column (Ea). Combining (E, a) and (E, a), we get \( EEaa \).

Step4: Analyze Offspring 4

Offspring 4 is from row (eA) and column (eA). Combining (e, A) and (e, A), we get \( eeAA \).

Step5: Analyze Offspring 5

Offspring 5 is from row (ea) and column (ea). Combining (e, a) and (e, a), we get \( eea a \).

Answer:

1. \( EeAA \)
2. \( EEAa \)
3. \( EEaa \)
4. \( eeAA \)
5. \( eea a \)