Stomoata in grass leaf are Option 1 : Kidney shapedOption 2 : Dumb-bell shapedOption 3 : Barrel shapedOption 4 : Rectangular

Pollen grains can be stored for several years in liquid nitrogen having a temperature of Option 1 : -120°COption 2 : -160°COption 3 : -80°COption 4 : -196°C

Option 1 :ZygotenOption 2 : PachyteneOption 3 : DiploteneOption 4 : Diakinesis Correct answer is Option 3.

The two functional groups characteristic of sugar are Option 1 : Hydroxyl and methyl Option 2 : Carbonyl and methyl Option 3 : Carbonyl and hydroxyl Option 4 : Carbonyl and phosphate

Which of the following is true for nucleolus? Option 1 : Larger nucleoli are present in dividing cells. Option 2 : It is a site for active ribosomal RNA synthesis. Option 3 : It takes part in spindle formation. Option 4 : It is a membrane-bound structure.

Stomatal movement is not affect by Option 1 : O2 concentration Option 2 : Temperature Option 3 : CO2 concentration Option 4 : Light

Which of the following is not a product of light reaction of photosynthesis? Option 1 : ATP Option 2 : NADPH Option 3 : NADH Option 4 : Oxygen

Which among the following is not a prokaryote? Option 1 : Saccharomyces Option 2 : Nostoc Option 3 : Mycobacterium Option 4 : Oscillatoria

In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen? Option 1 : Oxygen Option 2 : Fe Option 3 : Cl Option 4 : Carbon

The Golgi complex participates in Option 1 : Fatty acid breakdown Option 2 : Respiration in bacteria Option 3 : Activation of amino acid Option 4 : Formation of secretory vesicles