Dominant Traits in Genetics

This video from Moomoomath and Science discusses dominant and recessive human traits. Dominant traits mask recessive ones, which only appear if two recessive alleles are inherited. The video lists several dominant traits, such as a low resting heart rate, widow's peak, facial dimples, clockwise hair growth, cleft chin, extra fingers or toes, straight thumb, freckles, short fingers, webbed fingers, and a Roman nose. The presenter shares their own count of dominant traits and encourages viewers to subscribe for daily math and science content.

What is the main characteristic of a dominant trait?

• It is always visible.

• It masks a recessive trait.

• It only appears with two alleles.

• It is less common than recessive traits.

Which of the following is a dominant trait?

• Straight hairline

• High resting heart rate

• No facial dimples

• Widow's peak

In terms of hair direction, which is considered dominant?

• Both are equally dominant

• No specific direction

• Clockwise

• Counterclockwise

What is the dominant trait regarding chin shape?

• Pointed chin

• Round chin

• Cleft chin

• Smooth chin

What is a dominant trait related to fingers?

• Short fingers

• Curved fingers

• Normal-sized fingers

• Long fingers

Which nose type is considered a dominant trait?

• Snub nose

• Button nose

• Roman nose

• Flat nose

Which of the following is a dominant trait related to freckles?

• Freckles

• No freckles

• Freckles only on face

• Freckles only on arms