First time crossing over was observed in ___________?

Related Mcqs:

1. Who first observed and thus hypothesized that new cells are formed from previously existing living cell?

   A. Theodor Schwann and Schleiden
   B. Rudolph Virchows
   C. Louis Pasteur
   D. Both b and c

2. ___________ is the potential surce of chemical energy for cellular activities?

   A. C-H bond
   B. C-O bond
   C. C-N bond
   D. P-O-C bond

3. The one which is present in all living things is ___________?

   A. Cell nucleus
   B. DNA or RNA
   C. Cell membrane
   D. Vacuole

4. Mosses are included in sub-division of ___________?

   A. Anthoceropsida
   B. Hepaticopsida
   C. Bryopsida
   D. Lycopsida

5. Gibberellins may be substituted for ___________ light, therefore promote flowering in long day plants?

   A. White
   B. Red
   C. Blue
   D. Green

6. Normal action potential of a neuronal cell is ___________?

   A. plus 50 mv
   B. plus 60 mv
   C. plus 70 mv
   D. plus 80 mv

7. Blood does not clot in the blood vessels due to the presence of ___________?

   A. Thrombin
   B. Fibrinogen
   C. Heparin
   D. Prothrombin

   Submitted by: Malik Asghar Hussain

8. Accurate name given to blood is ___________ ?

   A. Red fluid
   B. Hemoglobin
   C. Fluid tissue
   D. Plasma

   Submitted by: Rashid Mehmood

9. Length of membranous urethra is about ___________ ?

   A. 1 cm
   B. 2 cm
   C. 5 cm
   D. 9 cm

   Submitted by: Rashid Mehmood

10. The method of reproduction of new plants by cells instead of seed is known is:___________?

    A. Tissue culture
    B. Mutation
    C. Antibiosis
    D. Recombination

    Submitted by: Fahad Mehsud