instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: Many genetic disorders are caused by mutations in one or a few of? Answer: genes
answer:
Many genetic disorders are caused by mutations in one or a few genes.

question:
Question: What is the most common cause of lung cancer? Answer: tobacco smoke exposure
answer:
The new cells gradually move up through the epidermis toward the surface of the body. As they move, they produce the tough, fibrous protein called keratin.

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Question: What can be looked at to see a record of how horses evolved? Answer: fossil records
answer:
Evolution of the Horse. The fossil record reveals how horses evolved.