Advertisements
Advertisements
Question
Discuss with your teacher what does ‘a suitable gene’ means, in the context of DNA vaccines.
Advertisements
Solution
A DNA vaccine consists of a gene encoding an antigenic protein, which is then inserted into a plasmid and introduced into the cells of a target animal. The plasmid vaccine, which contains the DNA (gene), enters the nucleus of target cells and is transcribed into RNA, which then produces the specific antigenic protein because these proteins are detected as foreign. When they are digested by host cells and presented on their surfaces, the immune system is alerted, triggering a variety of immune responses.
APPEARS IN
RELATED QUESTIONS
Write a note on ‘artificial acquired active immunity’.
Why is secondary immune response more intense than the primary immune response in humans?
Write a note on erythrocytes.
Mention the first vaccine developed against any human disease.
Suggest a method to ensure an anamnestic response in humans.
Mention role of interferons
An antiviral protein released from infected and dying cells is ______.
Expand the following: SCID
''Abnormally, large numbers of WBCs in the blood are usually an indication of some infection in our body''. Comment on the statement.
Write the full forms of AIDS.
Write the full forms of: DPT vaccine
Write the full forms of: STD
Give the technical term for the kind of proteins produced in the blood to fight and destroy harmful micr
Answer the following question.
Differentiate between the roles of B-lymphocytes and T-lymphocytes in generating immune responses.
Mention one application of the following:
Passive immunization
Mention one application of the following:
Antihistamine
Differentiate between B-cells and T-cells.
Immunity acquired after an infection is ______immunity.
Passive immunity is ______.
Explain the importance of epithelial surface in innate immunity.
____________ is a foreign substance capable of stimulating an immune response.
In acquired immunity there is a specific mechanism for each foreign molecule. This property is known as _______.
Coating of bacteria to facilitate subsequent phagocytosis by macrophages is known as ____________.
Toxins released by bacteria like tetanus toxin undergo______.
Which type of T-cells are responsible for producing lymphokines and stimulation of B- cells?
Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.
All are forms of vaccines, EXCEPT ______.
Which type of immunity is acquired by antigenic stimulus?
What happens to most sensitised lymphocytes or effector cells after they are produced by a stimulated lymphocyte?
