Name the three types of barriers that can isolate populations.<span>
Answer: Behavioral isolation, geographic isolation, and temporal isolation</span>
Any infectious diseases can be prevented by vaccinations
<u>Explanation:</u>
- Vaccines defend against infectious diseases that cause severe illness and seldom death.
- It prevents disease in somebody who receives them and protects those who get into contact with unvaccinated individuals.
- Vaccines include the corresponding antigens or parts of it that cause illnesses, but the antigens in vaccines are either destroyed or incapacitated.
- When they are introduced into fatty tissue or muscle, vaccine antigens are not powerful enough to generate the symptoms and signs of the disease but are tough enough for the immune system to build antibodies against them.
Answer:
The correct answer will be option-B.
Explanation:
Transfer RNA or tRNA is the RNA molecule associated with the protein synthesis as it adds the specific amino acids to the nascent growing polypeptide.
The structure of the tRNA molecule resembles the shape of a clover leaf and is known as the clover leaf model. The structure contains hydrogen-bonded stems and associated loops. The stems include acceptor stem which posses CCA 3'-terminal group to attach amino acids. The anticodon loop contains an amino acid attachment site. T and D loop contains modified pseudouridine and dihydrouridine.
Thus, Option-B is the correct answer.
Answer:
Consequences of the widespread use of plastic materials can be an increase in levels pollution and the overflowing of landfills because most plastics are non-biodegradable and can take a very long time to disappear unlike things like paper which are biodegradable.
You are testing for the presence of starch: Iodine dissolved in an aqueous solution of potassium iodide - reacts with starch producing a deep blue-black color. This reaction is the result of the formation of polyiodide chains from the reaction of starch and iodine.
