A herbicides dichlorophenyldimethylurea (DCMU) is known as diuron an inhibitor of photosynthetic electron transport. Which one of the following option would be correct about diuron?

a.) Blocks electron flow at the plastoquinone acceptors of PSII by competing for the binding site of plastoquinone

b.) causes a partial inhibition of stomatal closing

c.) accepts electrons from the early acceptors of PSI such as A0 and then reacts with oxygen to form superoxide, O2 –

d.) causes a partial inhibition of light-stimulated stomatal opening

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#Question id: 4700

#Unit 11. Evolution and Behavior

Which of the following is not an observation or inference on which natural selection is based?

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#Question id: 11268

#Unit 10. Ecological Principles

Consumption efficiency (CE) is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level but Assimilation efficiencies (AE) is the proportion of ingested energy that is assimilated into the bloodstream. Which of the Following statement is correct?

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#Question id: 1963

#Unit 4. Cell Communication and Cell Signaling

Inflammatory responses may include which of the following?

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#Question id: 33504

#Unit 2. Cellular Organization

The techniques to identify the presence of exons can be based

A. Alignment algorithms 

B. Splicing reactions

C. Analysing ortholog

D. Zoo Blotting

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#Question id: 12854

#General Aptitude

If the ratio of areas of two squares is 225 : 256, then the ratio of their perimeter is :