Home
Class 12
BIOLOGY
"It is a stochastic process based on cha...

"It is a stochastic process based on chance events in nature and chance mutation in the organisms". This statement tells us about

A

Non directional nature of evolution

B

Directional mutations leading to natural selection

C

Lack of anthropogenic impact on the evolutionary time scale

D

Constant rate of reproduction & evolution in all organisms

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Assertion: Evolution is not a directed process in sense of determinism. Reason: Evolution is a stochastic process based on chance events in nature and chance mutation in the organisms.

Assertion : Evolution is not a directed process in the sense of determinism. Reason : Evolution is a stochastic process based on chance events in nature and chance mutation in the organism.

______system of classification was based on nature affinities among the organisms.

Non-ionziny radiations commonly used for inducing mutations in organism are :-

Which one of the following statements about gene mutation is incorrect?

Of three independent events, the chance that only the first occurs is a, the chance that only the second occurs is b and the chance of only third is c. if x is a root of the equation (a + x) (b + x) ( c + x) = x^(2) , then chance of three events are respectively :

AAKASH INSTITUTE-TEST 2-EXERCISE
  1. Mark the odd one out w.r.t autoimmune diseases.

    Text Solution

    |

  2. The pathogen transmitted through female mosquito causing chronic infla...

    Text Solution

    |

  3. "It is a stochastic process based on chance events in nature and chanc...

    Text Solution

    |

  4. Reptilian ancestry of birds is shown by the presence of

    Text Solution

    |

  5. Frequency of an autosomal recessive gene in a population is 0.40. The ...

    Text Solution

    |

  6. Among human ancestors, the extinct hominid who lived in near east and ...

    Text Solution

    |

  7. Pattern of bones in forelimbs of humans and wings of bat are an exampl...

    Text Solution

    |

  8. During industrialization in England, the black colored peppered moth b...

    Text Solution

    |

  9. The tendency of population to remain in genetic equilibrium may be dis...

    Text Solution

    |

  10. When more than one adaptive radiations appeared to have occurred in an...

    Text Solution

    |

  11. Which among the following is most likely the earliest event according ...

    Text Solution

    |

  12. Data from experimental survey in India suggests that, weight of new bo...

    Text Solution

    |

  13. The most significant change in human evolution is regarded as

    Text Solution

    |

  14. Select odd one out w.r.t. Australian marsupials.

    Text Solution

    |

  15. Read the following statements carefully. A. Studies suggest that firs...

    Text Solution

    |

  16. Read the following sentences carefully and choose the option having co...

    Text Solution

    |

  17. Phytochemistry as a criterion for the classification of organisms is a...

    Text Solution

    |

  18. Which of the following is incorrectly matched?

    Text Solution

    |

  19. The common asexual spore in algae is , Br i-Thin-walled, br ii- Alwa...

    Text Solution

    |

  20. Which of the following structures are of gametophytic origin in bryoph...

    Text Solution

    |