Answer:
Bacterial plasmid are easily gotten from commercial suppliers, controlled to produced recombinant plasmits through the process of inserting foreing DNA, before it is introduced into bacterial cells.
Age cohort is the group of people born during the same time. Due to their similar time of birth, they pass the course of life together. Therefore, the correct answer to your question is A. Example of the age cohort is the students of particular class, who are of same age group ad have similar expressions and concerns.
