Are traits controlled by dominant alleles more common than traits controlled by recessive alleles?

free ear lobe attached ear lobe

free ear lobe attached ear lobe hair on fingers no hair on fingers

free ear lobe attached ear lobe hair on fingers no hair on fingers

widow’s peak no widow’s peak

free ear lobe attached ear lobe hair on fingers no hair on fingers

widow’s peak no widow’s peak curly hair straight hair

free ear lobe attached ear lobe hair on fingers no hair on fingers

widow’s peak no widow’s peak curly hair straight hair

cleft chin smooth chin

free ear lobe attached ear lobe hair on fingers no hair on fingers

widow’s peak no widow’s peak curly hair straight hair

cleft chin smooth chin dimples no dimples

Data Table

Free ear lobes

Hair on fingers

Widow’s peak

Curly hair

Cleft chin

Smile dimples

Attached ear lobes

No hair on fingers

No widow’s peak

Straight hair

Smooth chin

No smile dimples

Total Number of Students

Trait 1 Trait 2Number Number

Genetic WheelAre your traits unique?

Ears LobesFree or Attached?

Hair on FingersYes or No?

Widow’s PeakYes or No?

HairCurly or Straight?

ChinCleft or Smooth?

DimplesYes or No?

Mr. Oshana#19

Free ear lobes

Hair on fingers

Widow’s peak

Curly hair

Cleft chin

Smile dimples

Attached ear lobes

No hair on fingers

No widow’s peak

Straight hair

Smooth chin

No smile dimples

Trait 1 Trait 2Number Number

Dominant Alleles

Free ear lobes

Hair on fingers

Widow’s peak

Curly hair

Cleft chin

Smile dimples

Attached ear lobes

No hair on fingers

No widow’s peak

Straight hair

Smooth chin

No smile dimples

Trait 1 Trait 2Number Number

Recessive Alleles

Do people who are related to each other show more genetic similarity than unrelated people?