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The double helical model of DNA resemble...

The double helical model of DNA resembles a twisted ladder in which the rungs of the ladder are `:`

A

a paried G and C paried with T

B

a purine paired with a pyrimidine

C

sugar - phosphate paired with sugar-phosphate

D

both(a) and (b) are correct

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The correct Answer is:
B
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GRB PUBLICATION-THE GENETIC MATERIAL-DNA
  1. To determine the three dimensional structure of DNA, Watson and Crick ...

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  2. Radio tracer technique show that DNA is in :

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

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

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

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

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

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  8. Width of DNA molecule is :

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

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

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  11. The length of DNA having 23 hase pairs is

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

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  13. Which of the following is correct pair of pyrimidine bases

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  14. DNA has :

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  15. DNA is double helix and :

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  16. DNA is very long in relation to its diameter. If a strand of DNA is 0....

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  17. Which of the following statements regarding a double - helical molecul...

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  18. The coiling of double strands in DNA is :

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  19. A double strand DNA measures 34 mu . How many nucleotide pairs will be...

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  20. The single turn of DNA has …………………… base pairs

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