Home
Class 12
BIOLOGY
In angiosperm, polyembryony was first re...

In angiosperm, polyembryony was first reported by:
(a) Leeuwenhoek
(b) Strasburger
(c) Hofmeister
(d) Hanstein

A

Leeuwenhoek

B

Strasburger

C

Hofmeister

D

Hanstein.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • NO IDEA

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers|37 Videos
  • NO IDEA

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers|37 Videos
  • MOLLUSCA

    DINESH PUBLICATION ENGLISH|Exercise CYG|10 Videos
  • ORGANISMS AND THE ENVIRONMENT

    DINESH PUBLICATION ENGLISH|Exercise CYG|17 Videos

Similar Questions

Explore conceptually related problems

Human sperm was discovered by (a) Leeuwenhoek (b) Aristotle (c) Graaf (d) Pander

The term chromosome was introduced by (a) Strasburger (b) Benda (c) Waldeyer (d) Hofmeister

According to one vital force theory, ascent of sap is due to active pulsation of innermost layer of cortex. This theory was given by or In plant 'transpiration pull' theory for ascent of sap was first proposed by (a) J.C. Bose (b) Dixon (c) Strasburger (d) Sachs

First scientist to study development of angiosperm embryo was (a) Strasburger (b) Flemming (c) Hanstein (d) Hofmeister

Photoperiodism was first characterised in (a) Tabacco (b) Potato (c) Tomato (d) Cotton

Chromosomes were first seen by (a) Hofmeister (b) Waldeyer (c) Walter S. Sutton (d) Crick and Watson

60 % of the angiosperms shed their pollens at the (a) 2 celled stage (b) 3 celled stage (c) 4 celled stage (d) 1 celled stage

Read the following statements (a) Angiosperms range in size from microscopic Wolffia to tall trees of Eucalyptus (b) In angiosperms, the seeds are enclosed by fruits (c ) Double fertilization is an event unique to angiosperms (d) In angiosperms, each cell of embryo sac is diploid (e) In angiosperms, the zygote develops into an endosperm Of the above statements, the correct ones are

Vessels occur in (a) All angiosperms, all gymnosperms, and some pteridophytes (b) All angiosperms and some gymnosperms (c) Most angiosperms, a few gymnosperms and pteridophytes (d) All pteridophytes

The smallest angiosperm is (a) Mistletoe (b) Rafflesia (c) Wolfiella (d) Wolffia

DINESH PUBLICATION ENGLISH-NO IDEA-Check Your Grasp
  1. Monosporangiate anther occurs in (a) Arceuthobium (b) Rafflesia (...

    Text Solution

    |

  2. Which one produces callose for breaking plasmodesmal connections among...

    Text Solution

    |

  3. Endothecial cells of anther has fibrous thickenings of (a) Suberin (...

    Text Solution

    |

  4. Discontinuous layers in the wall of pollen grain are

    Text Solution

    |

  5. Pollen tube is covered by (a) Exine only (b) Plasmalemma only (c) ...

    Text Solution

    |

  6. In molva/Althaea a single pollen grain produces pollen tube

    Text Solution

    |

  7. An indehiscent integumented megasporan- gium is found in

    Text Solution

    |

  8. In ovule, cuticle is present over (a) Outer part of integument (b) Ou...

    Text Solution

    |

  9. A diploid structure present in the embryo sac is

    Text Solution

    |

  10. Type of ovule present in Opuntia is

    Text Solution

    |

  11. Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...

    Text Solution

    |

  12. Siphonogamy was discovered by

    Text Solution

    |

  13. In dicot embryo hypophysis is

    Text Solution

    |

  14. Embryo without plumule, radicle and cotyledon is formed in (a) Orchids...

    Text Solution

    |

  15. In angiosperm, polyembryony was first reported by: (a) Leeuwenhoek (b...

    Text Solution

    |

  16. First scientist to study development of angiosperm embryo was (a) Str...

    Text Solution

    |

  17. In Areca, the endosperm is (a) Soft and ruminate (b) Fleshy and rum...

    Text Solution

    |

  18. Xenia was discovered by (a) Swingle (b) Focke (c) Guignard (d) A...

    Text Solution

    |

  19. the smallest pollen grain occurs in

    Text Solution

    |

  20. Amongst angiosperms, double fertilization/triple fusion is absent in

    Text Solution

    |