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Meselson and Stahl used an isotope to de...

Meselson and Stahl used an isotope to demonstrate semiconservative nature of DNA duplication. Which isotope did they use ?

A

`.^(14)C`

B

`.^(3)H`

C

`.^(32)P`

D

`.^(15)N`

Text Solution

Verified by Experts

The correct Answer is:
D
`**" "`Matthew Meselson and Franklin Stahl performed the following experiment in 1958.
`**" "`They grew E. coli in a medium containing `.^(15)NH_(4)Cl` (`.^(15)N` is the heavy isotope of nitrogen) as the only nitrogen source for many generations.
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A2Z-MOLECULAR BASIS OF INHERITANCE-Section C PREVIOUS YEARS' EXAMINATION QUESTIONS (NEET/AIPMT Question)
  1. Which one of the following terms is used to explain the acquisition of...

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  2. The process of synthesis of messenger RNA on the DNA template is calle...

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  3. Meselson and Stahl used an isotope to demonstrate semiconservative nat...

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  4. Identify the correct order of organisation of genetic material from la...

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  5. Satellite DNA is important because it

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  6. Which one of the following is not applicable to RNA ?

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  7. The movement of a gene from one linkage group to an other is called

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  8. Gene regulation governing lactose operon of E.coli that involves the l...

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  9. The coding region on the DNA is called a

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  10. Which of the following alters the genetic code ?

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  11. DNA polymorphism that has been used to develop the DNA fingerprinting ...

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  12. Which of the following are the purine nucleotides ?

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  13. The following is not a character of RNA

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  14. Which of the following nitrogenous base is double ringed ?

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  15. In DNA finger printing, DNA bridization with the help of specific DNA ...

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  16. Who proved experimentally that DNA is genetic material ?

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  17. Which one of the following is the starter codon ?

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  18. Which of the following is required as inducer(s) for the expression of...

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  19. Which of the following statements is not true for cancer cells is rela...

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  20. Which of the following is not required for any of the techniques of DN...

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