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Retroviruses have no DNA. However, the D...

Retroviruses have no DNA. However, the DNA of the infected host cell does possess viral DNA. How is it possible ?

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MODERN PUBLICATION-HUMAN HEALTH AND DISEASES-REVISION EXERCISES (II. VERY SHORT ANSWER QUESTIONS) (B. QUESTIONS FROM CBSE EXAMINATIONS)
  1. A 10 year old boy had chicken pox. He is not expected to have the same...

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  2. Name type of virus causes AIDS ? Name its genetic material.

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  3. How does smoking tabacco in human lead to oxygen deficiency in their b...

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  4. State two different roles of spleen in the human body.

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  5. How do interferéns protect us?

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  6. "Pranay suffered from measles at the age of 10 years. There are rare c...

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  7. Why sharing of injection needles between two individuals is not recomm...

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  8. When does a human body elicit an anamnestic response?

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  9. Name any two types of cells which act as 'cellular barriers' to provid...

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  10. Name the two intermediate hosts which the human liver fluke depends on...

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  11. Give an example of a plant which came into India as a contaminant and ...

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  12. Why is secondary immune response more intense than the primary immune ...

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  13. Indiscriminate diagnostic practices using X-rays etc. should be avoide...

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  14. Retroviruses have no DNA. However, the DNA of the infected host cell d...

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  15. give an example of human disorder that is due to a single gene ...

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  16. Suggest a method to ensure an anamnestic response in humans.

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  17. Name two diseases whose spread can be controlled by the eradication of...

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  18. How do cytokine barriers provide innate immunity in humans?

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  19. Name any two physiological barriers that provide innate immunity.

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  20. Write the scientific name of the organism Alexander Flemming worked on...

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