Answer:
Restriction Enzymes
Explanation:
It is restriction enzymes specifically, which are used to cut DNA into fragments. Restriction enzymes can be regarded as biological scalpels which can produce either a blunt end or sticky end in DNA.
No, bigger organisms have more cells.
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Plasma carries salts and enzymes, the primary purpose is to transport hormones, nutrients and proteins to part of the body that need it
Answer:
The secondary immune response is the immune response when the same antigen , memory cells that was encountered before is remembered and the immune system make antibodies to counter it.
Explanation:
There is a difference between the primary immune response and secondary immune response.
In the primary immune response occur when the immune system encountered an antigen for the first time which lead to the generation of memory cells and and the B cells with the T cells produce antibodies.
While the secondary immune response occur when the same antigen that was encountered the first time is encountered the second time and it lead to the stimulation of memory cells to produce more and high quantities of antibodies to fight foreign substances.
