Home
Class 12
BIOLOGY
Age of fossils was previously determined...

Age of fossils was previously determined by radioactive elements. More precise recent method which has led to revision to evolutionary periods is

A

Study of carbohydrate and protein in fossils

B

Study of conditions of fossilization

C

Electron spin resonance and fossil DNA

D

Presence of carbohydrate and protein in rocks

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    CENGAGE BIOLOGY ENGLISH|Exercise Exercise Assertion-Reasoning Question.|25 Videos
  • EVOLUTION

    CENGAGE BIOLOGY ENGLISH|Exercise Archives|38 Videos
  • ENVIRONMENTAL ISSUES

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|45 Videos
  • HUMAN HEALTH AND DISEASE

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|46 Videos

Similar Questions

Explore conceptually related problems

Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includes

Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includes

Which of the following ages cannot be determined by radioactive carbon dating?

All radioactive elements which emit beta- rays have the same half - life periods.

The micro essential mineral element which has been reported recently is

Total number of elements of 6th period which have one or more than one 4d electrons :-

Total number of elements of 5th period which have one or more than one 5d electrons :-

The half-life of a radioactive element which has only (1)/(32) of its original mass left after a lapse of 60 days is

From the standpoint of atomic structure, what determines which element will be the first and which the last in a period of the periodic table?

Comprehension given below is followed by some multiple choice questions. Each question has one correct option. Choose the correct option. In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz s, p, d and f. The modern periodic table consists of 7 periods and 18 groups. Each, period begins with the filling of a new energy shell. In accordance with the Aufbau principle, the seven periods (1 to 7) have 2, 8, 8, 18, 18, 32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthonoids and actinoids are placed at the bottom of the main body of the periodic table (iv) The electronic configuration of the element which is just above the element with atomic number 43 in th same group is ...........

CENGAGE BIOLOGY ENGLISH-EVOLUTION-Archives
  1. Age of fossils was previously determined by radioactive elements. More...

    Text Solution

    |

  2. One of the important consequences of geographical isolation is

    Text Solution

    |

  3. Adaptive radiation refers to

    Text Solution

    |

  4. Industrial meanism as observed in peppered moth proves that

    Text Solution

    |

  5. What is common to whale seal and shark

    Text Solution

    |

  6. Which one of the following is a matching pair of a body feature and th...

    Text Solution

    |

  7. What is common between Parrot, Platy-pus and Kangaroo?

    Text Solution

    |

  8. The finches of Galapagos islands provide an evidence in favour of

    Text Solution

    |

  9. The concept of chemical evolution is based on

    Text Solution

    |

  10. Which one of the following statement is correct ?

    Text Solution

    |

  11. A polygenic trait is controlled by 3 genes A, B and C . In a cross ...

    Text Solution

    |

  12. Which one of the following is incorrect about the characteristics of p...

    Text Solution

    |

  13. Which one of the following pair of items correclty belongs to the cate...

    Text Solution

    |

  14. Thorn of Bougainvillea and tendril of Cucurbita are examples of :

    Text Solution

    |

  15. Which one of the following scientist's name is correctly matched with ...

    Text Solution

    |

  16. Which one of the following in birds indicates their reptilian ancesty?

    Text Solution

    |

  17. Peripatus is a connected link between

    Text Solution

    |

  18. What was the most significant trend in the evolution of modern man (Ho...

    Text Solution

    |

  19. What was the most significant trend in the evolution of modern man (Ho...

    Text Solution

    |

  20. Which one of the following options gives one correct example each of c...

    Text Solution

    |

  21. The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, A...

    Text Solution

    |