Skin Color Genetics and Traits

Mr. King introduces a lesson on the genetics of skin color, explaining that dark skin is dominant over light skin. He discusses the complexity of genetic traits like height and metabolism, and guides students through analyzing a large Punnett square to determine possible offspring skin colors. The lesson includes questions on dominant and recessive alleles, phenotypes, and probabilities. Mr. King concludes with a fun fact about top-grossing films.

What is the main topic introduced by Mr. King in this lesson?

• The importance of surveys

• Skin color genetics

• The history of genetics

• The schedule for the week

Which trait is dominant according to the lesson?

• Curly hair

• Blue eyes

• Dark skin

• Light skin

What are some examples of complex traits mentioned in the lesson?

• Blood type and hair color

• Nose shape and ear size

• Eye color and hair type

• Height and skin color

What role are students encouraged to take on during the lesson?

• Chemist

• Biologist

• Genetic counselor

• Genetic engineer

How many possible offspring skin colors are there in the Punnett square discussed?

• 16

• 32

• 64

• 128

What is the probability of two tan individuals having a child with the darkest skin?

• 15/64

• 1/64

• 5/64

• 10/64

What is the most likely phenotype when two tan individuals mate?

• Medium skin

• Albino

• Dark skin

• Light skin

What is the significance of melanin in skin color?

• It determines hair color

• It provides UV protection

• It influences height

• It affects eye color

Which film is mentioned as the top-grossing film of all time?

• Avengers: Endgame

• Avatar

• Star Wars

• Titanic

What is the third highest-grossing film mentioned in the lesson?

• Jurassic Park

• Avengers: Endgame

• Titanic

• Avatar