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A bacteria containing 100% N^(15) nitrog...

A bacteria containing 100% `N^(15)` nitrogen bases is allowed to replicate in medium containing `N^(14)` bases. After one round of duplication , the result would be

A

all individuals would be identical to parents

B

all individual would be radioactive , but the percentage of radioactive in DNA would be 50%

C

only 50% individuals would be 50%

D

all individuals would be similar to parents , but different among themselves

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The correct Answer is:
B
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ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (A) Taking it together (Assorted questions of the Chapter for Advanced Level Practice
  1. Practice using the dictionary of the genetic code determine the amino ...

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  2. During protein synthesis , the correct amino acid is brought to the ri...

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  3. Which among the following codon do not codes for valine (val)?

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  4. The process of translation requires

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  5. Which of the following is true about the terminator

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  6. Which of the following is true about the promoter gene?

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  7. In protein synthesis, a polypeptide of five amino acids is synthesized...

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  8. In mRNA , AUG is the initiating codons and UAA, UAG and UGA are termin...

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  9. In tryptophan synthesis pathway , tryptophan acts as a compressor . Wh...

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  10. While analysing the DNA of an organism a total number of 5386 nucleoti...

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  11. Which of the following is true for RNA processing?

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  12. A DNA molecule in which both strands have radioactive thymidine is all...

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  13. A bacteria containing 100% N^(15) nitrogen bases is allowed to replica...

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  14. A DNA molecule in E. coli is heavy and labelled with N^(15). Iit is al...

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  15. DNA is a polymer of nucleotides which are linked to each other by 3'-5...

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  16. Which of the following pairs is correctly matched?

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  17. Unlike the process of replication , which one set in the total DNA of ...

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  18. Viruses grown in the presence of radioactive phosphorus contained radi...

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  19. Select the correct statement about the structure gene in a transcripti...

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  20. Which process occurs in the regulation of gene expression in prokaryot...

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