Following are certain statements are related to the effect of red and far-red light;

a) under a dense canopy much of the red light is absorbed by plant pigments, resulting in transmittance of mostly far-red light

b) Pr (red) has highest photon flux at 680 nm while Pfr (far-red) has highest photon flux at 730nm

c) Pfr far-red light–absorbing form, which is considered to be the physiologically active form of phytochrome

d) R:FR ratio is strongly affected by the presence of a canopy because chlorophyll absorbs far-red but not red light

Which one of the combinations of above statements is incorrect?

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#Question id: 9186

#Unit 9. Diversity of Life Forms

A pathogenic fungus invades a plant. What does the infected plant produce in response to the attack?

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#Question id: 4886

#Unit 8. Inheritance Biology

Match the two columns that represent linkage strength and frequency of gametes Which of the following correct combination of linkage strength and frequency of gametes? 

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#Question id: 23698

#Unit 13. Methods in Biology

A student wishes to clone a sequence of DNA of ~200 kb. Which vector would be appropriate?

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#Question id: 1430

#Unit 4. Cell Communication and Cell Signaling

2-hydroxyglutarate is produced in cancer cells:

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#Question id: 582

#Unit 1. Molecules and their Interaction Relevant to Biology

When two different substrates react to form two different products, the rate constants for each separate substrate can be determined by