5. What is meant by "lactase persistence," - use your own words to explain this.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Question 5: What is meant by "lactase persistence," - use your own words to explain this.**

*Lactase persistence* refers to the ability of some people to continue producing the enzyme lactase throughout their adult lives. Lactase is important because it helps digest lactose, the sugar found in milk. While most mammals stop producing lactase after weaning, lactase persistence allows certain human populations to keep consuming dairy products without discomfort. This trait is often due to genetic adaptations and varies among different ethnic groups.
Transcribed Image Text:**Question 5: What is meant by "lactase persistence," - use your own words to explain this.** *Lactase persistence* refers to the ability of some people to continue producing the enzyme lactase throughout their adult lives. Lactase is important because it helps digest lactose, the sugar found in milk. While most mammals stop producing lactase after weaning, lactase persistence allows certain human populations to keep consuming dairy products without discomfort. This trait is often due to genetic adaptations and varies among different ethnic groups.
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