Which of the Following Is One of the Methods Used

question 128

Multiple Choice

Which of the following is one of the methods used in recombinant DNA research?

• A)Antigens are artificially added to the body to stimulate the immune system.
• B)Weak electrical currents are used to regrow damaged neurons.
• C)Cells with nerve growth factor are implanted to repair severed spinal cord neurons.
• D)Enzymes are used to cut chromosomes into pieces.

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