Home
Class 12
BIOLOGY
In the DNA molecule...

In the DNA molecule

A

the proportion of Adenine in relation to thymine varies with the organism

B

there are two strnads which run antiparalel one in `5' to 3'` direction and other in `3' to 5'`

C

the totalamount of purine nucleotides and pyrimidine nucleotides is not always equal

D

there are two strnds which run parallel in the `5' to 3'` direction

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise EXERCISE-III (ANALYTICAL QUESTIONS|85 Videos

  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise EXERCISE-IV (ASSERTION & REASON)|144 Videos

  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise EXERCISE-I (CONCEPTUAL QUESTIONS)|554 Videos

  • GENETICS

    ALLEN|Exercise Question|58 Videos

  • GENETICS (PRINCIPLES OF INHERITANCE AND VARIATION) (MOLECULAR BASIS OF INHERITANCE)

    ALLEN|Exercise Question|53 Videos

Similar Questions

Explore conceptually related problems

A segment of DNA molecule contains 20,000 base pairs. What is the number of phosphate molecule in this DNA molecule ?

If the base sequence along one side af a DNA molecule is TTCGA, then the complementary sequence of bases on the other side of the DNA molecule is :

In the eukaryotes the DNA molecules are organised within the nucleus. How is the DNA molecule organised in a bacterial cell in absence of a nucleus?

The technique for breakage of DNA fragment and inserting it into another DNA molecule, is related to

A ds DNA is 100 kbp long. The number of nucleotides, number of complete turns in the molecule and the length of the DNA molecule will be:-

Which of the following enzymes cut the DNA molecule at specific nucleotide sequence ?

In the process of recombinant DNA technology, the isolated foreign DNA is inserted into another DNA molecule known as

(a) What is this diagram representing? (b) Name the parts a, b and c. (c) In the eukaryotes the DNA molecules are organized within the nucleus. How is the DNA molecule organized in a bacterial cell in absence of a nucleus?

A fragment of DNA, cut by a restriction enzyme, forms bonds with other DNA molecules that have

One chromosome contains one molecule of DNA. In eukaryotes the length of the DNA molecule is enormously large. Explain how such a long molecule fits into the tiny chromosomes seen at Metaphase.

ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-II (PREVIOUS YEAR QUESTIONS
  1. Polysome is formed by

    Text Solution

    |

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

    Text Solution

    |

  3. In the DNA molecule

    Text Solution

    |

  4. Which one of the following pairs of codons is correctly matched with t...

    Text Solution

    |

  5. Which of the following bond is not related to nucleic acid :

    Text Solution

    |

  6. Haploids are more suitable for mutation studies than the diploids. Thi...

    Text Solution

    |

  7. Sickle cell anaemia is :

    Text Solution

    |

  8. The most popularly known blood grouping is the ABO grouping. It is nam...

    Text Solution

    |

  9. Select the incorrect statement from the following

    Text Solution

    |

  10. Study the pedigree chart given below what does it show?

    Text Solution

    |

  11. What is not true for genetic code?

    Text Solution

    |

  12. Removal of introns and joining the exons in a defined order in a trans...

    Text Solution

    |

  13. Semiconservative replication of DNA was first demostracted in

    Text Solution

    |

  14. Whose experiments cracked the DNA and discovered unequivocally that a ...

    Text Solution

    |

  15. Point mutation involves

    Text Solution

    |

  16. The genotype of a plant showing the dominant phenotype can be determin...

    Text Solution

    |

  17. Which one of the following cannot be explained on the basis of Mendel'...

    Text Solution

    |

  18. ABO blood groups in human beings are controlled by the gene I. The gen...

    Text Solution

    |

  19. Select the correct statement from the ones given below with respect to...

    Text Solution

    |

  20. Select the two correct statements out of the four given below about la...

    Text Solution

    |