<span>Answer:
Vaccine generates a population of plasma cells that increase the concentration of antibody in the bloodstream.
Explanation:
Vaccines are inactive or non functional infectious agents enter into the body in order to generate antibody against such agents In future if virus or bacteria that is resemble to the structure of already injected agents attack on human body. The immune system get alert and antibody which are already produced attack on them and prevent them from causing disease.</span>
Answer:
C. a mutation causes a specific variation within the population
Answer:
D. Biotechnology
Explanation:
Biotechnology is the use of biological processes, living organisms, or biological systems to manufacture useful products in order to improve the quality of human life.
Biotechnology covers many disciplines such as genetic engineering, biochemistry, molecular biology, medicine, agriculture etc. In medicine, biotechnology has been applied in the development of medicines and therapies, etc. In agriculture, biotechnology is applied in the development of genetically modified plants, biofuels, biological treatment as well as to solve other agriculture-related issues. In the industries, through genetic engineering, simple cells and proteins has been engineered to produce useful chemicals such as drugs, hormones, etc.
Since George's studies involves cell culturing and genetics of plants in order to develop technology that will improve plant production and solve other agriculture-related problems, he is studying Biotechnology.