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

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#Question id: 20403

#Unit 3. Fundamental Processes

Purine are rich in non-template strand applies more closely to 

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#Question id: 7038

#Unit 5. Developmental Biology

During sea urchin development, micromeres retain their specification is to secrete an autocrine factor:

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#Question id: 33337

#Unit 2. Cellular Organization

Which of the following protein forms a spiral structure on the inner surface of the cytoplasmic membrane and oscillates back and forth from pole to pole? 

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#Question id: 607

#Unit 1. Molecules and their Interaction Relevant to Biology

In E. coli ________ is an activator and ________ is a negative allosteric modulator of the enzyme phosphofructokinase-1. 

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#Question id: 11713

#Unit 9. Diversity of Life Forms

Theoretically, which two of the following present the richest potential sources of silica?

1.  marine sediments consisting of foram tests

2.  marine sediments consisting of diatom cases (valves)

3.  marine sediments consisting of radiolarian shells

4.  marine sediments consisting of dinoflagellate plates