Gene therapy affects a cell by A) Cells with functioning genes are replaced with mutated genes.
Answer:
B. Living organisms use matter and energy for their life processes
<span>Dense layer holding in natural gas and petroleum</span>
Answer:D( Ribosomes
Explanation: Since most enzymes are proteins, it will be produced at the ribosomes. It may have an active and an inactive form. Which means another substance Will turn it on or off.