Gene therapy is the introduction of normal genes into cells in place of missing or defective ones in order to correct genetic disorders. which often involves the use of bacteria or viruses to deliver new or modified genes to cells.
Researchers are testing several approaches to gene therapy, including:
Look for more fossils of the two animals he has already found in the same two rock layers.
Look for other fossils of transitional forms in the rock layers between the two fossils.
Look for fossils of more primitive forms in the rock layers below the first fossil.
Answer:
Look for other fossils of transitional forms in the rock layers between the two fossils.
Explanation:
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