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In the DNA molecule...

In the DNA molecule

A

the total amount of purine nucleotides and pyrimidine nucleotides is not always equal

B

the proportion of adenine in relation to thymine varies with the organism

C

there are two strands which run parallel in the `5' rarr 3'` direction

D

there are two strands which run antiparallel one in `5' rarr 3'` direction and other in `3' rarr 5'` direction

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The correct Answer is:
D
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GRB PUBLICATION-THE GENETIC MATERIAL-DNA REPLICATION
  1. Match the following :

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  2. In DNA, the complementary bases are :

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  3. In the DNA molecule

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  4. Match List -I and List -II and select the answer using the codes :

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  5. In a DNA molecule, the adenine is 15% . What will be the percentage of...

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  6. DNA can be formed by :

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  7. The RNA primer is used in :

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  8. Meselson Stahl experiment on semiconservative replication demonstrate ...

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  9. The method developed by Matthew Meselson and Franklin Stahl to separ...

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  10. Assertion (A) : Replication and transcription occur in the nucleus but...

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  11. Assertion (A) : DNA code is copied in the synthesis of m-RNA. Reason...

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  12. The strand of DNA acting as template for m-RNA transcription is : A....

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  13. Which of the following be named for DNA produced from RNA ?

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  14. Semiconservative replication of DNA was first demonstrated in

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  15. Whose experiments cracked the DNA and discovered unequivocally that a ...

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  16. There is no DNA in

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  17. In microbial genetics which one is referred to as "Griffith effect"?

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  18. The anti -paralle nature of DNA refers to

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  19. Among the nitrogenous bases involved in DNA and RNA formation, the dou...

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  20. In a double stranded DNA molecule , the percentage of cytosine is 18. ...

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