What is the primary focus of the discussion on lactose intolerance?

Lactose Tolerance and Evolutionary Adaptations

Interactive Video
•
Biology, Science, Social Studies
•
10th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The health benefits of lactose-free diets.
The evolutionary reason why some humans retain lactase activity.
The role of lactose in plant-based diets.
The ability of all mammals to digest lactose throughout life.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true about lactase activity in mammals?
Cats are known to be lactose tolerant.
All mammals retain high lactase activity into adulthood.
Lactase activity is unrelated to genetic factors.
Lactase activity peaks at birth and declines after weaning in most mammals.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What historical development is linked to the emergence of lactose tolerance in humans?
The discovery of pasteurization.
The cultivation of rice.
The domestication of dairy animals.
The invention of refrigeration.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is lactase persistence considered a recent trait in human history?
Because it is found in all mammals.
Because it existed before the domestication of animals.
Because it has no genetic basis.
Because it developed after the advent of agriculture.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might some populations have evolved to maintain lactase persistence?
To avoid lactose-free diets.
To increase protein intake from meat.
To enhance calcium absorption in low sunlight regions.
To improve digestion of plant-based foods.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does lactose affect calcium absorption in infants?
It enhances calcium absorption.
It only affects calcium absorption in adults.
It has no effect on calcium absorption.
It decreases calcium absorption.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the 'lactose effect' in terms of bone health?
Lactose has no impact on bone health.
Lactose enhances calcium absorption, improving bone health.
Lactose only affects bone health in adults.
Lactose decreases bone density.
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