In chemical synapses that involve a so-called second messenger, typically a G-protein linked to the postsynaptic receptor is activated when neurotransmitter binds to that receptor. Which of the following represents an activity performed by the activated second messenger?

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#Question id: 11207

#Part-B Specialized Branches in Biotechnology

In multiple sclerosis, the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. How does this disease manifest at the level of the action potential?

 I) Action potentials move in the opposite direction on the axon.

 II) Action potentials move more slowly along the axon.

 III) No action potentials are transmitted.

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#Question id: 667

#Part-B Specialized Branches in Biotechnology

Which represents the backbone of a protein?

Note: R = amino acid side chain

N = nitrogen

Cα = alpha carbon

C = carbonyl carbon

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#Question id: 2623

#Part-A Aptitude & General Biotechnology

Combinatorial control is a characteristic feature of ;

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#Question id: 18662

#Part-A Aptitude & General Biotechnology

Which of the following method is particularly useful for separating isoenzymes, which are different forms of the same enzyme, often differing by only one or two amino-acid residues.

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#Question id: 16791

#Part-A Aptitude & General Biotechnology

The mode of a distribution is 24 and the mean is 60. What is its median?