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Which one of the following statements is...

Which one of the following statements is incorrect about the properties of DNA ?

A

DNA is denatured when heated to `80^@C` or more

B

DNA shows high absorption of UV - radiation at 260 nm

C

DNA directly participates in protein synthesis

D

Pyrimidines of DNA are cytosine and thymine

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The correct Answer is:
C
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USHA PUBLICATION-MOLECULAR BASIS OF INHERITANCE-EXERCISE
  1. In DNA , the two chains of double head to tail arrangement is called :

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  2. In DNA when AGCT occurs , their association is as per which of the pai...

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  3. Which one of the following statements is incorrect about the propertie...

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  4. Polymerase chain reaction is most useful in :

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  5. What is C - value paradox ?

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  6. If a length of DNA has 45,000 base pairs , how many complete turns wil...

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  7. The length of DNA molecule greatly exceeds the dimensions of the nucle...

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  8. E. coli cells with a mutated Z gene of the lac operon cannot grow in m...

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  9. DNA finger printing refers to :

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  10. Which of the following pairs is correctly matched ?

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  11. Which one of the following pairs of nitrogenous bases of nucleic acids...

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  12. The number of triplet codons having all the three bases same in 64 tri...

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  13. From bacteria to men nearly universal code for phenyl alanine is :

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  14. True replication of DNA is possible due to :

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  15. Out of A - T , G - C pairing , bases of DNA may exist in alternate val...

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  16. The length of DNA having 23 base pairs is :

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  17. Which of the following codons has no t - RNA ?

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  18. In split genes coding sequences are

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  19. The smallest part of gene is called as

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  20. In 1869 , discovered the DNA .

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