Human Evolution and Lactase Persistence

How long ago did our species evolve?

• 400,000 years ago

• 300,000 years ago

• 200,000 years ago

• 100,000 years ago

Tags

NGSS.HS-LS4-1

When did people start domesticating animals and cultivating crops?

• 20,000 years ago

• 15,000 years ago

• 10,000 years ago

• 5,000 years ago

What is the main sugar found in milk?

• Fructose

• Glucose

• Galactose

• Lactose

What enzyme breaks down lactose in the intestine?

• Amylase

• Protease

• Lipase

• Lactase

Tags

NGSS.MS-LS1-7

What happens to most mammals when they stop drinking milk?

• They start producing more lactose

• They continue to produce lactase

• They become lactose persistent

• They become lactose intolerant

What percentage of adults worldwide can digest lactose?

• approx. 10%

• approx. 20%

• approx. 30%

• approx. 40%

What is the term for adults who can digest lactose?

• Lactose persistent

• Lactase persistent

• Lactase tolerant

• Lactose tolerant

Which region has a large majority of lactase persistent people?

• Northern Europe

• South America

• Africa

• Asia

Tags

NGSS.HS-LS4-4

What did researchers find in the DNA of lactase persistent people?

• A different sugar in milk

• A mutation in a lactase gene

• A new lactase enzyme

• A change in the lactose gene

Tags

NGSS.HS-LS3-2

Where did researchers find a different lactase persistence mutation?

• South America

• Africa

• Asia

• Europe

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2