Explanation:
white blood cells are the cells that do not have any shape
Answer:
RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.
For the environmental risk, it is much better to prevent pollution than to deal with it after it has already been made. When you deal with the pollution, it is hard to say that you can eliminate completely. So, prevention is the first strategy.
The process of making multiple copies of a gene by inserting it into a host genome and culturing the host is an example of gene cloning.