Home
Class 12
BIOLOGY
Select the incorrect statement about din...

Select the incorrect statement about dinoflagellates
(a) They are mostly marine & photosynthetic
(b) The cell wall has stiff cellulosic plates
(c) Gonyaulax is a red dinoflagellate
(d) Most of them have single flagellum

A

They are mostly marine & photosynthetic

B

The cell wall has stiff cellulosic plates

C

Gonyaulax is a red dinoflagellate

D

Most of them have single flagellum

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise Examplle|19 Videos

  • TEST 3

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|94 Videos

Similar Questions

Explore conceptually related problems

Mark the incorrect statement about Nucleopolyhedroviruses. (a) They are species specific (b) They have narrow spectrum insecticidal applications (c) They are nucleoprotein particle (d) They have negative impacts on plants, mammals, fishes and on non target insects also

Read the following statements w.r.t. fungi and select the incorrect option. (a) Aseptate and multinucleate fungal hyphae are reffered as coenocytic. (b) In oomycetes members, cellulosic cell wall is present. (c) Fungal cellulose is made up of acetylglucosamine. (d) Septum in members of class basidiomycetes have no pore. (e) Fungal cells have unicisternal golgi bodies.

From given statements select the incorrect statement. (a) Proteins which are obtained by recombinant DNA technology are called recombinant proteins (b) Downstream processing include separation and purification of the desired product (c) After purification the product has to be formulated with suitable preservatives (d) Downstream processing and quality control testing do not vary from product to product

Which of the following are the characters of dinoflagellates A. Planktonic golden yellow alage with soap box like structure B. Marine red biflagellated protista C. Appear yellow, green, brown, blue and red in colour D. Biflagellated organisms with pellicle E. Saprophytic (or) parasitic unicellular forms

Select the incorrect statement about in-vitro germination of pollen. (A) It can be easily studied by dusting some pollen from flowers such as balsam on a glass slide. (B) Germination generally requires about 45 - 60 minutes. (C) 10% sucrose solution is required for the germination (D) Both (B) and (C )

Read the following statements about the living plant tissue which has irregular thickenings and identify the false statement . I. The cell wall is rigid without any intercellular spaces. II.It is found in the form of a single - layered hypodermis of the herbaceous dicotyledonous stem. III. It is mostly found in monocots and roots . IV The main function in provide flexible mechanical support and tensile strength .

Select the incorrect statement from the following. (a) Rhizobium multiply and colonises the surroundings of roots and gets attached to epidermal and root hair cell. (b) Successful infection of the root hair causes it to curl . (c) The nodule establishes a direct Vascular connection with the host . (d) Infection thread carries the bacteria to xylem and phloem .

Select the option having all correct statements . (a) ER divide the intercellular space two distinct compartments. (b) The cis and the trans face of the Golgi body are entirely different but interconnected. (c) Lysosomes are the single membrane - bound vesicular structures formed by the process of packaging in the Golgi body. (d) In plant cells, the vacuole can occupy up to 90 percent of the volume of the cell .

Select the correct statements w.r.t pollen grain (a) Its sporoderm consists of exine and intine (b) Has exine whice helps in fossilization (c) Generally spherical shaped with about 25-50 um in diameter (d0 It can be stored in liquid N2 for years (e) Its viability does not depend on temperature and humidity.

The correct statement with respect to epithelial tissue is : - A - Cells are compactly packed B - cells have no intercellular matrix C - cells have little intracellular material D - it is single or multilayered

AAKASH INSTITUTE ENGLISH-TEST 2-EXERCISE
  1. Read the following statements and choose the correct option: (A) Dia...

    Text Solution

    |

  2. A unicellular organism which has a gullet, thousands of cilia one macr...

    Text Solution

    |

  3. Select the incorrect statement about dinoflagellates (a) They are most...

    Text Solution

    |

  4. Mycorrhiza is an association between (a) Roots of higher plants and fu...

    Text Solution

    |

  5. Bacterial viruses : A. Infect the bacteria B. Usually have double stra...

    Text Solution

    |

  6. Viruses have properties of both living and non-living things. They are...

    Text Solution

    |

  7. A prion is a

    Text Solution

    |

  8. A virus differs from a viroid as it

    Text Solution

    |

  9. Mark True (T) or False(F) for the following statements & choose the co...

    Text Solution

    |

  10. Bladderwort is a

    Text Solution

    |

  11. Select the features of Rhizopus. (a) Saprophytic fungus, (b) Hypha...

    Text Solution

    |

  12. Select the pair of fungi which belongs to clas deuteromycetes. (a) Alt...

    Text Solution

    |

  13. Ergot of Rye causing organism (a) Has coenocytic & aseptate mycelium ...

    Text Solution

    |

  14. The spores produced exogenously on the basidium are (a) Haploid (b) ...

    Text Solution

    |

  15. Which of the following statements is incorrect regarding fungi? (a) It...

    Text Solution

    |

  16. Pneumoconiosis is a type of

    Text Solution

    |

  17. Partial pressure of oxygen and carbon dioxide are same in which region...

    Text Solution

    |

  18. The end of which wave in an ECG marks the end of ventricular systole? ...

    Text Solution

    |

  19. Select the disease/symptom which is incorrectly described

    Text Solution

    |

  20. During summer when body loses more water due to profuse sweating and d...

    Text Solution

    |