SDS PAGE separate molecules by size because the presence of SDS (sodium dodecyl sulphate) denatures the protein removing 2˚, 3˚ and 4˚ structures (they assume a linear chain) and the SDS coats the molecules giving them a uniform charge/mass ratio. In an experiment (SDS-PAGE) with a discontinuous buffer system following band pattern is obtained 

   

Choose the correct statement regarding this band pattern

#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.

#Question id: 11208

#Part-B Specialized Branches in Biotechnology

Neurotransmitters are released from axon terminals via ________.

#Question id: 11209

#Part-B Specialized Branches in Biotechnology

Acetylcholine released into the junction between a motor neuron and a skeletal muscle binds to a sodium/potassium channel and opens it. This is an example of ________.

#Question id: 11210

#Part-B Specialized Branches in Biotechnology

An inhibitory postsynaptic potential (IPSP) occurs in a membrane made more permeable to ________.

#Question id: 11212

#Part-B Specialized Branches in Biotechnology

The activity of acetylcholine in a synapse is terminated by its ________.

#Question id: 11213

#Part-B Specialized Branches in Biotechnology

An example of ligand-gated ion channels is ________.