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Escherichia coli, in which both the stra...

Escherichia coli, in which both the strands of DNA are labelled with` .^(15)N`, is transferred to `.^(14)N` medium and allowed to replicate for two generations. Find out the number of hybrid DNA molecues in the second generation

A

One

B

Two

C

Four

D

Eight

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The correct Answer is:
B
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ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (C) Medical entrance s gallery
  1. Which of the following statement is incorrect ?

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

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  3. Escherichia coli, in which both the strands of DNA are labelled with ....

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  4. What is the amino acid sequence in the polypeptide segment translated ...

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  5. which one of the following is not applicable to RNA

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  6. Identify the correct order of organisation of genetic material from...

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

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  8. In sea urchin DNA, which is double stranded, 17% of the bases were sho...

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  9. Semiconservative replication of DNA was first demonstrated in

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  10. The enzyme used to join the fragment of DNA during the process of repl...

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  11. 6-(4-Hydroxy-3 Methyl-trans-2-butenylamine) purine is also called

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  12. Which of the following is correct regarding RNA processing?

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  13. Spliing is the process where

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  14. RNA polymerase -1 transcribes eukaryotic ribosome which does not consi...

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  15. In 125 amino acid sequence if the codon of 25th amino acid is mutated ...

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  16. The codon AUG has dueal function. It is an initiation codon and also c...

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  17. The nitrogen base found only in DNA is also called

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  18. In a 3.2 Kbp long piece of DNA , 820 adenine bases were found. What ...

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  19. A beads on a string like chromatin with 200 beads or nucleosomes conta...

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  20. Assertion (A) Transcription unit is often monocistronic in eukaryotes ...

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