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

Natality refers to Option 1 : Death rate Option 2 : Number of individuals leaving the habitat Option 3 : Birth rate Option 4 : Number of individuals entering a habitat

World Ozone Day is celebrated on Option 1 : 22nd April Option 2 : 5th June Option 3 : 16th September Option 4 : 21st April

Which of the following is a secondary pollutant? Option 1 : CO Option 2 : CO2 Option 3 : O3 Option 4 : SO2

A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to Option 1 : Sharbati Sonora Option 2 : Lerma Rojo Option 3 : Basmati Option 4 : Co-667