Multiple choice

Lactose intolerance occurs due to

  1. lactase deficiency

  2. lactose surplus

  3. enzyme conflict

  4. interfernce of other enzymes like pepsin, etc.
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A Correct answer
Explanation

Lactose intolerance occurs due to an inadequate production of lactase. This enzyme breaks down or digests lactose in the digestive tract. While most babies produce sufficient amount of lactase, the gene for its production often later gets turned off.

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