A- DNA is

A

rarely double stranded

B

rarely single stranded

C

always single stranded

D

always double stranded

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The correct Answer is:
B
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GRB PUBLICATION-THE GENETIC MATERIAL-DNA
  1. You are studying a bacterial virus and found its base composition to b...

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  2. In a sample of DNA the base composition (mole ratio) is found to A=40 ...

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  3. A- DNA is

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  4. Single stranded nucleic acid is found in

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  5. The year 2003 was celebrated as the 50^(th) anniversary of discovery ...

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  6. Double helical model of DNA molecule was proposed by :

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  7. Recipients of Nobel Prize for DNA double helical structure are :

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  8. Watson and Crick got Noble Prize for proposing DNA model in the year :

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  9. To determine the three dimensional structure of DNA, Watson and Crick ...

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  10. Radio tracer technique show that DNA is in :

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  11. The double helical model of DNA resembles a twisted ladder in which th...

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  12. A 340 Å long segment of DNA molecules has 20 thymine nitrogenous bases...

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  13. What is true for Watson and Crick's model of DNA ? It is duplexed with...

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  14. Length of one loop of B-DNA is :

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  15. Wilkin's X-ray diffraction showed the diameter of the DNA helix as :

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  16. Width of DNA molecule is :

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  17. The length of one full turn of DNA is :

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  18. In the double helix modle of DNA , how far is each base pair from the...

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  19. The length of DNA having 23 hase pairs is

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  20. A given double stranded DNA molecule is 10000 base-pairs long. The len...

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