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प्रश्न
Discuss with your teacher what does ‘a suitable gene’ means, in the context of DNA vaccines.
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उत्तर
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.
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संबंधित प्रश्न
It is generally observed that the children who had suffered from chickenpox in their childhood may not contract the same disease in their adulthood. Explain, giving reasons, the basics of such immunity in an individual. Name this kind of immunity.
Name any two types of cells that act as ‘cellular barriers’ to provide innate immunity in humans.
What are the uses of vaccine?
What are interferons?
Name the cells that are released from the above-mentioned gland. Mention how they help in immunity.
An antiviral protein released from infected and dying cells is ______.
Expand the following:
SCID
How do cytokine barriers provide innate immunity in humans?
Explain the relationship between B-lymphocytes and T-lymphocytes developing an immune response.
It is said that vaccinations are a must for a healthy society. Justify.
How does the human body respond when vaccine is introduced into it?
Name the following:
The vaccine that helps to produce immunity against polio.
Write the full forms of: BCG
Write the full forms of: DPT vaccine
Write the full forms of: STD
State the role of the thymus as a lymphoid organ. Name the cells that are released from it and mention their function.
Which cells stimulate B-cells to form antibodies?
Which one of the following is the most accurate definition of the term ‘health’?
Explain the importance of epithelial surface in innate immunity.
Virally infected cells release ______ to protect healthy cells from viral infection.
Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.
What is the site of maturation of B-lymphocytes?
Production of which of the following is stimulated by secretin hormone?
______ provides a physical barrier.
Write a short note on Acute Phase Proteins (APPs).
Class of cytokines released by cells infected with viruses and certain WBC's to protect from viral infection are ______.
What is the definition of immunology?
Which of the following best describes what the immune system does in terms of distinguishing cells?
Which of the following statements about stimulated lymphocytes is correct?
