discussion

Dominant and recessive human traits form.

Dominant Recessive

Cleft chin Chin without a cleft

Cheek dimples No cheek dimples

Free earlobes Attached earlobes

Face freckles No face freckles

No Hitchhiker’s thumb Hitchhiker’s thumb

Widow’s peak No widow’s peak

I will explain what’s the different between no hitchhiker’s thumb and hitchhiker’s thumb. Gene transfer of genes in the genome of organisms of certain characters by a pair of gene control, and pairs of genes are often dominant and recessive and dominant genes controlling dominant traits. Recessive gene control recessive traits when controlling a trait gene is dominant. Recessive only showed a dominant gene controlled traits. Control of bending of the gene (f) is a dominant gene. Also, the bending control gene (f) is a recessive gene. If the father becomes the FF, and mother of the genome is FF. As a result, their children's parent-child generation of figure, so the woman as the FF, namely the thumb are not bent anymore.

Source: https://askabiologist.asu.edu/mendelian-traits-humans