Which of the following causes an increase in the intensity of UV radiation reaching the Earth? 

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#Question id: 19302

#SCPH28 | Zoology

The assembly of various DNA sequences designed for easy identification of the construct and its efficient expression is termed as

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#Question id: 816

#SCPH28 | Zoology

Protein stability primarily depends on

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#Question id: 19138

#SCPH01 Biochemistry

Which of the following statement is correct?

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#Question id: 15657

#SCPH01 Biochemistry

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium.

You next construct a MelA– MelB– double mutant, which gives the following behavior:

 

Which of your two models is consistent with this new data?

a) the MelA- MelB- double mutant is identical to the MelB- mutant

b) MelA- is epistatic to MelB-

c) MelB- is epistatic to MelA-

d) the MelA- MelB- double mutant is identical to the MelA- mutant

Which of the following is the correct prediction about the double mutants?

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#Question id: 11106

#I Life Science/ Life Sciences Group – I-V

The respiratory conducting passageways perform all of the following functions EXCEPT: