Assertion (A): Commitment to androgenesis is achieved primarily by the abolition of pollen maturation gene expression. 

Reason (R): During induction, several hundred genes are upregulated or downregulated to facilitate the developmental switch

Select the correct option from:

#Question id: 40481

#Applied Microbiology

Which specific chemical element, released from CFCs in the stratosphere, acts as a catalyst to break down Ozone (O3) into Oxygen (O2)

#Question id: 40482

#Applied Microbiology

 Which international treaty was signed specifically to control the emission of Ozone Depleting Substances (ODS) like CFCs?

#Question id: 40483

#Applied Microbiology

While HFCs (Hydrofluorocarbons) were introduced to replace CFCs because they do not deplete the ozone layer, they are still problematic. Why?

#Question id: 40484

#Applied Microbiology

Read the following statements regarding the breakdown of the ozone layer:

Statement I: UV radiation acts upon Chlorofluorocarbons (CFCs) in the stratosphere to release active Chloride radicals.

Statement II: A single Chlorine radical is consumed after destroying one Ozone molecule and cannot participate in further reactions.

Which of the options is correct?

#Question id: 40485

#Applied Microbiology

 Consider the following statements about the "Ozone Hole":

1. It is most prominent over the Antarctica region.

2. It forms primarily during the late winter and early spring.

3. The formation of Polar Stratospheric Clouds (PSCs) facilitates the depletion process.

Which of the statements given above are correct?

#Question id: 40486

#Applied Microbiology

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The thickness of the ozone layer is measured in Dobson Units (DU).

Reason (R): The ozone layer is found in the Troposphere and protects us from harmful UV-B radiation.