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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
Name any two types of cells that act as ‘cellular barriers’ to provide innate immunity in humans.
Highlight the role of thymus as a lymphoid organ.
Why is secondary immune response more intense than the primary immune response in humans?
Sketch and label structure of Antibody
Write the full forms of: BCG
Write the full forms of: DPT vaccine
Write the full forms of: HIV
Write the full forms of: TAB
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Treatment by the use of chemicals is known as allopathy.
Mention one application for the following:
Cytokinin-barrier
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Enlist the four types of T- lymphocytes, responsible for immune response of our body.
Enlist any four barriers that contribute to innate immunity.
State the significance of mother’s milk to a newborn.
Explain the importance of epithelial surface in innate immunity.
A similar disease generally does not reappear in a child due to the presence of which type of cells?
All of the following statements are true with respect to immunity, EXCEPT
Virally infected cells release ______ to protect healthy cells from viral infection.
T-lymphocytes and B-lymphocytes are derived from ____________.
The epithelial barrier of the innate immune system is ____________.
Toxins released by bacteria like tetanus toxin undergo______.
What is the site of maturation of B-lymphocytes?
______ provides a physical barrier.
Innate immunity is ______
Which scientist is associated with the concept of immunity and developed the cowpox vaccine for protection against smallpox?
What are antibodies?
Which of the following statements about stimulated lymphocytes is correct?
