Most repressor proteins are allosteric. Which of the following molecules binds with the repressor to alter its conformation and therefore affect its function?

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#Question id: 1574

#Part-B Specialized Branches in Biotechnology

A bacterium entering the body through a small cut in the skin will do which of the following?

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#Question id: 4378

#Part-A Aptitude & General Biotechnology

This serves as the promoter for 70% of eukaryotic genes and typically serves as a control region for genes that are transcribed at relatively low rates.

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#Question id: 848

#Part-B Specialized Branches in Biotechnology

Which of the brain diseases is not caused by the misfolding of brain proteins in mammals

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#Question id: 18645

#Part-A Aptitude & General Biotechnology

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: 738

#Part-B Specialized Branches in Biotechnology

Which of the following is correct for peptide bonds

A) C and N are shorter than typical C-N bonds.

B) C and N are longer than typical C-N bonds.

C) C and O are longer than typical C=O bonds.

D) C and O are shorter than typical C=O bonds.