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Assertion : Avery et al proved that dige...

Assertion : Avery et al proved that digestion with Dnase did inhibit transformation, sugesting that DNA caused the transformation.
Reason : Avery et al concluded that DNA is the hereditary material, but not all biologists were convinced.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

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The correct Answer is:
B
`**` Avery et al proved that digestion with Dnase did inhibit transformation, suggesting that DNA caused the transformation.
`**` Avery et al concluded that DNA is the hereditary material, but not all biologists were convinced.
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A2Z-MOLECULAR BASIS OF INHERITANCE-Section B: Assertion-reasoning Questions
  1. Assertion : Dnase is the DNA digesting enzyme. Reason : DNAs represe...

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  2. Assertion : Transforming substance was not a protein or RNA. Reason ...

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  3. Assertion : Avery et al proved that digestion with Dnase did inhibit t...

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  4. Assertion : DNA is perferred over RNA for storage of genetic informati...

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  5. Assertion : For the transmission of genetic information, RNA is better...

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  6. Assertion : RNA being a catalyst was reactive and hence unstable. Re...

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  7. Assertion : E. coli divides in 20 minutes. Reason : In E. coli the p...

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  8. Assertion : Deoxyribonucleoside triphosphate act as substrates and als...

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  9. Assertion : Origin of replication (ori) is a definite region in E. col...

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  10. Assertion : If a piece of DNA to be propagated during recombinant DNA ...

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  11. Assertion : In transcription only a segment of DNA and only one of the...

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  12. Assertion : Monocistronic genes are found in prokaryotes Reason : Po...

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  13. Assertion : Split genes are found in eukaryotes. Reason : Introns or...

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  14. Assertion : All three ENAs (mRNA, tRNA and rRNA) are needed to synthes...

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  15. Assertion : Nucleotide triphosphates acts as substrates during transcr...

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  16. Assertion : There is single DNA-dependent RNA polymerase that catalyse...

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  17. Assertion : The transcription and traslation can be coupled in bacteri...

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  18. Assertion : The relationship between genes and DNA are best understood...

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  19. Assertion : The HGP was coordinated by the U.S. Department of Energy a...

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  20. Assertion : Almost all (99.9%) nuceotide bases are exactly the same in...

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