Scientists have cloned goats so they can take out a protein in the goats’ milk and use it to make medicine. The goats are raised in a laboratory. The medicine that is produced can help with certain diseases that affect humans.

Because the goats are cloned and genetically altered to produce a human medicine in their milk, the process could affect their health in ways scientists do not yet know. Cloning does not increase genetic variation, and producing the protein does not mean the goats will catch the human diseases. The concern is unknown health risks to the goats, choice C.

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