Home
Class 12
BIOLOGY
Assertion : The first cell of the suspen...

Assertion : The first cell of the suspensor towards the mictopyle in a dicot embrocomes swollen to form the haustonum
Reason : The haustorum abosorts food material for the developing embryo

A

Both assertion and reason are true, and reason is the correct explanation of the assertion.

B

Both assertion and reason are true, but reason is not the correct explanation of assertion.

C

Assertion is true but reason is false

D

Both assertion and reason are false

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF INHERITANCE AND VARIATION

    ICSE|Exercise MULTIPLE CHOICE QUESTION|98 Videos

  • REPRODUCTION IN ORGANISMS

    ICSE|Exercise COMPETITION CORNER OBJECTIVE TYPE QUESTIONS ((B) Assertion and Reason Type Questions) (Fopr AIIMS aspirants)|16 Videos

Similar Questions

Explore conceptually related problems

Assertion : Embryogenesis is the development of embryo from the zygote. Reason : Cell division increase the number of cells in the developing embryo.

Assertion : During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo. Reason : The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.

Assertion : Endosperm is a nutritive tissue and it is triploid Reason : Endosperm is formed by fusion of secondary nucleus to second male gamete. It is used by developing embryo for nutrition.

Assertion :- Most zygotes divide only after certain amount of endosperm is formed. Reason :- This is an adaptation to provide assured nutrition to the developing embryo.

Assertion : The method of development of embryo sac from a single functional megaspore is termed as monosporic development. Reason : In monosporic (Polygonum) type of embryo sac development, usually the megaspore which is situated towards micropylar end remains functional.

Assertion : Reptiles can be termed as first true land animals Reason : These are completely independent of water due to the development of internal fertilization and the presence of a special membrane ( amnion) around the developing embryo.

Assertion:Fibrous root system consists of large number of fine, fibrous roots developing form the base of the stem. Reason:Fibrous root system is found in dicots only.

Assertion (A) : Vegetable oils are fats which are present in plant cells in soluble form. Reason (R ) : Vegetable oils occur only in cells of embryo.

A : The most immediate effect of FSH is the maturation of existing late primary or secondary follicle . R : A rising level of FSH causes the developing egg within the follicle to complete the first meiotic division to form a secondary oocyte. . (a) If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark a (b) If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark b (c) If Assertion is true statement but Reason is false then mark c (d) If both Assertion and Reason are false statement then mark d

Assertion : When embryo sac develops from megaspore mother cell without meiosis it is called diplospory. Reason : Fruits are formed without seeds in diplospory

ICSE-QUESTION PAPER 2022 TERM 1-MULTIPLE CHOICE QUESTIONS
  1. The compatibility of pollen-pistil interaction is determined by .

    Text Solution

    |

  2. If the Fallopian tubes in the human reproductive system get blocked , ...

    Text Solution

    |

  3. Morula is a solid ball of blastomeres

    Text Solution

    |

  4. Which of the following is the most important component of a contracept...

    Text Solution

    |

  5. A human male with an extra X-chromosomes suffers from a condition call...

    Text Solution

    |

  6. The human genome contain more than nucleotide pairs.

    Text Solution

    |

  7. Gene migration is also called .

    Text Solution

    |

  8. Which of the following is used of the production of ethanol from starc...

    Text Solution

    |

  9. is a mutual assocition of fungal hyphae with the roots of higher plant...

    Text Solution

    |

  10. Which of the following statments is NOT true ?

    Text Solution

    |

  11. Which of the following options is NOT a feature of the synthetic theor...

    Text Solution

    |

  12. Match column I with column II and select the correct option from the c...

    Text Solution

    |

  13. Match column I with column II and select the correct option from the c...

    Text Solution

    |

  14. Which of the following animals does not have oestrous cycle ?

    Text Solution

    |

  15. Choose the odd one among the following with reference to microbes as b...

    Text Solution

    |

  16. Assertion : In uckle cell anaemia the codon GAG is replaced by GUG. ...

    Text Solution

    |

  17. Assertion : Testes and ovanes are primary sex organs Reason : Facial...

    Text Solution

    |

  18. Assertion : The first cell of the suspensor towards the mictopyle in a...

    Text Solution

    |

  19. Assertion : Nucleosome consists of a strand of DNA coiled around a cor...

    Text Solution

    |

  20. Assertion : Genome similarty and universal genetic code are examples o...

    Text Solution

    |