Smallest disease causing agents in plants are ?

Related Mcqs:

1. Term the time during which an orgnism is present in the body before causing disease ?

   A. Rest period
   B. Incubation period
   C. Sleeping period
   D. Inclubation time

   Submitted by: Farhan Rana

2. Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?

   A. Gibberellins
   B. Cytokinins
   C. Auxins
   D. Ethene.

3. Epiphytes are plants which depend on other plants for________?

   A. food
   B. mechanical support
   C. shade
   D. None of these

   Submitted by: Tauqeer Ahmad Rajput

4. The agent of controversial nature causing mad cow infection is_____________?

   A. Bacteria
   B. Cowpox Virus
   C. Adenovirus
   D. Prion

5. Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________?

   A. Robert Koch
   B. Louis Pasteur
   C. Alexander Fleming
   D. Leeuwenhoek

6. E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________?

   A. 0.1-600 um
   B. 100-200 nm
   C. 1.1-1.5 um (width) 2.0-6.0 um (length)
   D. 0.75-1.25 um

7. Who discovered the peptic ulcer causing bacteria H.PYLORI?

   A. Robert Hook
   B. James parkinson
   C. Dr Barry Marshall and dr Robin Warren
   D. None of these

   Submitted by: Ibrahim

8. Which of the following is the smallest known virus:

   A. Hepatitis virus
   B. Retrovirus
   C. Polio virus
   D. Pox virus

9. A smallest contractile unit of muscle contraction called sarcomere is the area between two:

   A. H- zone
   B. M- Line
   C. Z- Line
   D. A band

10. Which is the smallest gland in human body ______?

    A. Pituitary Gland
    B. Pineal Gland
    C. Adrenal Gland
    D. Parathyroid

    Submitted by: TALHA