Home
Class 12
BIOLOGY
Which was absent in the atmosphere at th...

Which was absent in the atmosphere at the time of origin of life ?

A

Water

B

Hydrogen

C

Oxygen

D

Carbon dioxide

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • DIVERSITY OF LIVING ORGANISMS

    ARIHANT PUBLICATION|Exercise QUESTION BANK|124 Videos
  • IMPROVEMENT IN FOOD RESOURCES

    ARIHANT PUBLICATION|Exercise QUESTION BANK|40 Videos
ARIHANT PUBLICATION-HEREDITY AND EVOLUTION-QUESTION BANK
  1. Match the following columns.

    Text Solution

    |

  2. The complex organic compounds that may have first evolved in the direc...

    Text Solution

    |

  3. Which was absent in the atmosphere at the time of origin of life ?

    Text Solution

    |

  4. Which of the following statements is correct about the characteristics...

    Text Solution

    |

  5. The water of primitive ocean during the time of origin of life has bee...

    Text Solution

    |

  6. Who was the 17th century scientist to give a recipe for spontaneous ge...

    Text Solution

    |

  7. Which of the criteria contributed to Mendel's success ? I. Selection ...

    Text Solution

    |

  8. A human male produces sperms with the genotypes AB, Ab, aB and ab pert...

    Text Solution

    |

  9. Mendelism was rediscovered by I. Morgan II. De Vries III. Corren...

    Text Solution

    |

  10. A common test to find the genotype of a hybrid is by

    Text Solution

    |

  11. A normal woman whose father was colour blind, is married to a normal m...

    Text Solution

    |

  12. Inheritance of skin colour in humans in an example of :-

    Text Solution

    |

  13. Drosophila melanogaster is found to be very suitable for genetic studi...

    Text Solution

    |

  14. The father has blood group AB and mother 'O'. The child is supposed to...

    Text Solution

    |

  15. Which one pair of parents out of the following is most likely get a ch...

    Text Solution

    |

  16. Which of the following gametes are produced by individual with genotyp...

    Text Solution

    |

  17. Match the following columns.

    Text Solution

    |

  18. grain clour in wheat isdetermined by three pairs if polygenes. Followi...

    Text Solution

    |

  19. Which of the following statements about Hershey and chase experiment a...

    Text Solution

    |

  20. Human skin colour is the example of I.multiple gene inheritance. II...

    Text Solution

    |