Home
Class 12
BIOLOGY
What will be the percentage of guanine i...

What will be the percentage of guanine in a DNA molecule having 20% adenine ?

A

0.2

B

0.3

C

0.4

D

0.6

Text Solution

Verified by Experts

The correct Answer is:
B
According to chargaff's rule A = T, C = G
If the % of, A = 20%
Therefore, T is also 20%
or A+T = 40% ltBRgt Therefore, G + C = 100 - 40 = 60%
Hence, G= 30%
Promotional Banner

Topper's Solved these Questions

  • GENE, ITS EXPRESSION AND REGULATION

    ARIHANT NEET|Exercise Chapter Exercise (B) Medical entrance s special format questions (Assertion reason)|8 Videos

  • FUNGI

    ARIHANT NEET|Exercise Chapter exercise C ( Medical entrances gallery (Collection of question asked in NEET & various Medical Entrance Exams )|29 Videos

  • GROWTH, REGENERATION AND AGEING

    ARIHANT NEET|Exercise Chapter exercises (Medical entrances gallery)|11 Videos

Similar Questions

Explore conceptually related problems

If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?

What would be the percentage of thymine in a double stranded DNA sample, which contains 20% cytosine of the total bases ?

A double stranded DNA molecule has 20% of cytosine. Using Chargaff's law calculate the percentage of adenine in this DNA molecule?

In a DNA molecule, the adenine is 15% . What will be the percentage of guanine in this DNA ?

If a double - stranded DNA has 30% of guanine , what will be the percentage of adenine and thymine base pairs ?

In a double stranded DNA molecule , the percentage of cytosine is 18. What would be the percentage of adenine ?

In DNA percentage of thymine is 20, then what is the percentage of guanine ?

The amount of A, T, G and C in DNA varies from species to species. According to Chargaff, the percentage of adenine is equal to the percentage of cytosine in DNA.

If the side of a cube is increased by 20%, then what will be the percentage increase in the volume of cube?

ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (C) Medical entrance s gallery
  1. Which RNA is synthesised by transcription done through the RNA polymer...

    Text Solution

    |

  2. The t-RNA anticodon 3' - UAC-5' will pair with the m-RNA codon :

    Text Solution

    |

  3. What will be the percentage of guanine in a DNA molecule having 20% ad...

    Text Solution

    |

  4. Which one of the following is wrongly matched?

    Text Solution

    |

  5. Transformation was discovered by

    Text Solution

    |

  6. What will be the number of histone molecules in a chromatin fibre ha...

    Text Solution

    |

  7. The sequence of nucleotides AUG CUU CUC indicates that it is a segment...

    Text Solution

    |

  8. In eukaryotic genes, coding sequences are called :

    Text Solution

    |

  9. Which site of the tRNA pairs through hydrogen bonding with the triplet...

    Text Solution

    |

  10. Find the wrongly matched pair .

    Text Solution

    |

  11. If an inheritable mutation is observed in a population at high freque...

    Text Solution

    |

  12. An eukaryotes, RNA polymerase II transcribes :

    Text Solution

    |

  13. Identify the wrong statement about DNA.

    Text Solution

    |

  14. Which property among these listed below is not a criteria for a molecu...

    Text Solution

    |

  15. Which triplet codon does not have t-RNA associated with it ?

    Text Solution

    |

  16. Read the following statements and choose the correct opton. I. RNA p...

    Text Solution

    |

  17. Choose the correct statement

    Text Solution

    |

  18. Aminoacylation of tRNA is essential for

    Text Solution

    |

  19. Which codon is not an indicator of completion of protein synthesis ?

    Text Solution

    |

  20. If the sequence of bases in the coding strand of a double stranded NDA...

    Text Solution

    |