A characteristic one has. It could be appearance or personality
Answer:
c. Recycling glass is an energy-saving practice.
Explanation:
I think because more energy is saved that way and makes it more effective than the rest of the choices.
Answer: B-cells fight bacteria and viruses by making y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells. C-cells are a virus-bound antibody that binds to receptors, on the surface of phagocytic cells and triggers a mechanism known as phagocytosis, by which the cell engulfs and destroys the virus.
Explanation: sorry this answer was not simple at all -_-
Somatostatin
glucagon
epinephrine
Answer:
Insertional inactivation of one antibiotic resistance gene would allow identifying the recombinant plasmid molecules by testing their susceptibility to the antibiotic.
Explanation:
Let's suppose that the desired gene sequence is inserted into the gene sequence of the tetracycline resistance gene of the plasmid. This would render the recombinant plasmids susceptible to tetracycline. However, these recombinant plasmids would have resistance against ampicillin. Therefore, insertional inactivation of the tetracycline resistance gene would help to identify the recombinant plasmids from the non-recombinant ones.