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Princess Diana

Genotype- Ee

Prince Charles

Genotype- Ee

1

2

Meghan Markle

Phenotype: unattached earlobes

Possible genotypes: EE, Ee

Charles & Diana

Prince Harry

Phenotype: unattached earlobes

Possible genotypes: EE, Ee

Meghan Markle

Ee

Prince William

ee

Prince Harry

ee

Diana

Catherine Middleton

Ee

Meghan

Catherine Middleton

Charles

Phenotype: unattached earlobes

Possible genotypes: EE, Ee

Charles

Because her offspring presents a recessive trait, Meghan's genotype must be Ee

Prince William

Both Charles and Diana must have the heterozygous genotype (Ee) because of their offspring with the recessive trait present.

Catherine

Because one of her children expresses the recessive trait (has attached earlobes),Catherine's genotype must be Ee.

1

4

2

3

Princess Charlotte & Prince Louis

Prince William

e

Ee

E

unattached

Kate Middleton

ee

e

attached

Because they both have unattached earlobes (the dominant trait), their genotype must be Ee

1. Trait: attachment of earlobes

Prince Louis

Ee

Princess Charlotte

Ee

Prince Archie

ee

attached

ee

2. Phenotype:

Prince George

ee

unattached

EE or Ee

Genotype:

(homozygous dominant, heterozygous)

(homozygous recessive)

3. Possible alleles:

e

E,e

3

1

2

4

Legend

Male with detached earlobes

Male with attached earlobes

Royal Family Pedigree Chart

Female with detached earlobes

Female with attached earlobes

Deceased

E

EE

E

unattached

Ee

e

unattached

e

Ee

E

unattached

ee

e

attached

e

Ee

E

unattached

e

Ee

E

unattached

e

E

EE

Ee

unattached

Ee

ee

e

attached

unattached

e

Ee

E

unattached

ee

e

attached

E

EE

unattached

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