Trial and Error
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The Answer D sound logical however I’m not sure about the 4 new chromosomes
Filter out parasites making the plant healthy
"D: A new gene, which codes for the protein that can repair defective genes, is introduced."
Explanation: <span>Gene therapy is an experimental technique that uses genes to treat or prevent disease. In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patient’s cells instead of using drugs or surgery.</span>
The area between your nose and upper lip is called the philtrum.
