When the excitable cells are incapable of producing normal action potentials, phenomena known as:

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#Question id: 18732

#Unit 13. Methods in Biology

Mechanism of ligation for both T4 DNA ligase and E. coli DNA ligase makes use of Adenosine Monophosphate (AMP). Which of the steps is involved in the ligation mechanism?

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#Question id: 314

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement explains the cleaning action of soap on greasy dishes?

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#Question id: 13082

#Unit 13. Methods in Biology

Statement: AFLP shares some features of both RFLP and RAPD analyses.

Explanations: I. It uses restriction enzyme-digested genomic DNA as template for PCR amplification using primers that contain the restriction enzyme recognition sites plus a number of, usually 2-3, arbitrary nucleotides.

II. AFLPs are faster, less labour intensive and provide more information than RFLPs, and they are highly reproducible, which is a great advantage over RAPDs.

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#Question id: 4044

#Unit 3. Fundamental Processes

Which of the following sigma specificity factors is involved in middle gene transcription during SPO1 phage infection of bacteria?

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#Question id: 7587

#General Aptitude

A goods train leaves a station at a certain time and at a fixed speed. After 8 hours, an express train leaves the same station and moves in the same direction at a uniform speed of 120 kmph, this train catches up the goods train in 7 hours. Find the speed of the goods train.