Assume that a poly(A) tract five base pairs long produces a 20^o bend in a DNA strand. What will the total (net) bend produce in a DNA if the center base pairs (the third of five) of two successive (dA)5 tracts are located15 base pairs apart;

TLS Online TPP Program

#Question id: 18624

#Unit 13. Methods in Biology

In GFP protein oxidation of tripeptide sequence gives fluorescence the tripeptide sequence made up of

TLS Online TPP Program

#Question id: 18625

#Unit 13. Methods in Biology

m.RNA variation can be analyzed by using

TLS Online TPP Program

#Question id: 18644

#Unit 13. Methods in Biology

A laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.

TLS Online TPP Program

#Question id: 18645

#Unit 13. Methods in Biology

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

TLS Online TPP Program

#Question id: 18646

#Unit 13. Methods in Biology

Which of the following technique can be used to determine the separation of proteins according to size, and relative molecular mass of proteins.

TLS Online TPP Program

#Question id: 18647

#Unit 13. Methods in Biology

Which of the following technique used discontinuous type gel system