Home
Class 9
BIOLOGY
DNA was discovered by ………… . Watson and ...

DNA was discovered by ………… .
Watson and Crick
Frederic Miescher
Gregor Johann Mendel
Robert Brown

A

Watsona nd Crick

B

Frederic Miescher

C

Gregor Johann Mendel

D

Robert Brown

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • HEREDITY AND VARIATION

    CHETANA PUBLICATION|Exercise EXAMPLE|123 Videos

  • ENVIRONMENTAL MANAGMANT

    CHETANA PUBLICATION|Exercise EXERCISE|113 Videos

  • INTRODUCTION TO BIOTECHNOLOGY

    CHETANA PUBLICATION|Exercise EXERCISE |122 Videos

Similar Questions

Explore conceptually related problems

The double helix model of DNA was produced by ……….. . Watson nd Crick Frederic Miescher Gregor Johann Mendel Robert Brown

................. showed that cells and tissues can be grown ex vivo. Frederick Campion Steward Gregor Johann Mendel Frederick Miescher Robert Brown

Describe the Watson & crick model of DNA.

Name the following Model of DNA proposed by Watson and Crick.

What background information did Watson and Crick have made available for developing a model of DNA? What was their contribution?

Describe the structure of DNA molecule as proposed by Watson and Crick.

Write a note on the salient features of the Watson and Crick model of the DNA.

Complete the paragraph Fill in the blanks by selecting the correct word from the bracket and complete the given paragraph. (adenine, phosphoric acid, centromeres, cytosine, nucleotides, ribonucleic acid, guanine, thymine) In 1953, Watson and Crick produced a model of the DNA molecule. As per this model, each strand in the molecule of DNA is made up of many small molecules known as _________. There are four types of nitrogenous bases adenine, guanine, cytosine and thymine_________and __________are called as ‘purines’ while _________and_________ are called ‘pyrimidines’. In the structure of the nucleotide, a molecule of a nitrogenous base and _________are each joined to a molecule of sugar.

CHETANA PUBLICATION-HEREDITY AND VARIATION-EXAMPLE
  1. DNA was discovered by ………… . Watson and Crick Frederic Miescher Gr...

    Text Solution

    |

  2. Find the odd man out: Axillary flower, green pod, green seed, inflat...

    Text Solution

    |

  3. Find the odd man out: Constricted pod, purple flower, axillary flowe...

    Text Solution

    |

  4. Find the odd man out: Green seeds, wrinkled seeds, terminal flower, ...

    Text Solution

    |

  5. Find the odd man out: Attached ear lobes, brown and straight hair, ...

    Text Solution

    |

  6. Find the odd man out: Cystic fibrosis, albinism, spina bifida, sickl...

    Text Solution

    |

  7. Find the odd man out: Hutchinson's disease, phenylketonuria, nightbl...

    Text Solution

    |

  8. Give scientific reasons: DNA molecules are called as 'Master molecule...

    Text Solution

    |

  9. Give scientific reasons: Phenotypic and genotypic ratios are differen...

    Text Solution

    |

  10. Give scientific reasons: A carrier or sufferer of sickle-cell anaemia...

    Text Solution

    |

  11. Give scientific reasons: Mitochondrial disorders are inherited from t...

    Text Solution

    |

  12. Give scientific reasons: Tobacco smoking causes cancer.

    Text Solution

    |

  13. Define the following terms : Gene

    Text Solution

    |

  14. Define the following terms : Chromosome

    Text Solution

    |

  15. Define the following terms : Genetics

    Text Solution

    |

  16. Define the following terms : Heredity

    Text Solution

    |

  17. Define the following: Homologous Chromosomes

    Text Solution

    |

  18. Distinguish between: DNA and RNA

    Text Solution

    |

  19. Distinguish between: Monohybrid Cross and Dihybrid Cross

    Text Solution

    |

  20. Differentiate between Turner's syndrome and Klinefelter's syndrome.

    Text Solution

    |

  21. Write short notes on: Down syndrome

    Text Solution

    |