Home
Class 12
BIOLOGY
$ The two strands of DNA run in an antip...

$ The two strands of DNA run in an antiparallel directions
DNA is formed of Deoxyribose sugar. Phosphorus and nitrogen bases called purines and pyrimidines.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION|Exercise Model test paper-1|100 Videos

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION|Exercise Model test paper-2|100 Videos

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION|Exercise Brain teasers-X|145 Videos

  • ECHINODERMATA

    DINESH PUBLICATION|Exercise REVISION QUESTIONS|65 Videos

  • EVIDENCES OF EVOLUTION

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|3 Videos

Similar Questions

Explore conceptually related problems

The two strands of DNA molecule are antiparallel. Explain.

Deoxyribose sugar in DNA is

Antiparallel strands in DNA is due to

Are the two strands of DNA molecule identical ?

Nitrogen bases of DNA are

In DNA purine nitrogen bases are :-

The two strands of DNA are held together by :

Why are DNA strands considered antiparallel?

DNA strands are antiparallel because of the presence of :

DNA strands are antiparallel because of the presence of

DINESH PUBLICATION-ENVIRONMENTAL ISSUES-Assertion and reason
  1. $ Proteins, polysaccharides and nucleic acid are the macromolecules of...

    Text Solution

    |

  2. $ DNA helix to 20Å wide. One complete turn of DNA is 34Å long.

    Text Solution

    |

  3. $ The two strands of DNA run in an antiparallel directions DNA is fo...

    Text Solution

    |

  4. $ The process of formation of polysaccharides by condensation of monom...

    Text Solution

    |

  5. $ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar a...

    Text Solution

    |

  6. $ In conjugated proteins, the protein molecule is joined to a non pro...

    Text Solution

    |

  7. $ Rhodopsin of rod cells and iodospin of cone cells of retina are prot...

    Text Solution

    |

  8. $ Louis Pasteur discovered that fermentation is brought about by mic...

    Text Solution

    |

  9. $ Those enzymes which are active inside a cell are called extra-cellul...

    Text Solution

    |

  10. $ Enzymes are special types of proteins. ! Those substances which in...

    Text Solution

    |

  11. $ Coenzymes are usually proteins ! The term feedback refers to the e...

    Text Solution

    |

  12. $ The cell membrane helps in pinocytosis and phagocytosis. ! Cell me...

    Text Solution

    |

  13. $ Positive diffusion occurs against the concentration gradients. ! O...

    Text Solution

    |

  14. $ Exosmosis causes turgidity. ! Endomosis causes flaccidity.

    Text Solution

    |

  15. $ The biomembrane which surrounds a vacuole is called Tonoplast. ! R...

    Text Solution

    |

  16. $ Lysosomes are also called suicidal bags of a cell. ! Glyoxysomes a...

    Text Solution

    |

  17. $ Plastids occur in plant cells and animals cells. ! Centriods are p...

    Text Solution

    |

  18. $ Cell wall of plants is formed of fungal cellulose. ! Smooth endopl...

    Text Solution

    |

  19. $ Amyloplasts store food materials in the form of starch grains. ! C...

    Text Solution

    |

  20. $ Nucleosome is present on the chromosomes. ! A true nucleus is call...

    Text Solution

    |