TLS Online TPP Program

#Question id: 10839


Which of the following statements about plants and herbivores is true?

#Unit 10. Ecological Principles
  1. Primary compounds tend to be more toxic than secondary compounds
  2. Secondary compounds are toxic to all herbivores
  3. Algae as well as plants produce toxic chemical compounds
  4. Herbivores that can tolerate a particular secondary compound usually feed on a wide variety of plant species
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TLS Online TPP Program

#Question id: 18663

#Unit 13. Methods in Biology

When a protein exists in mono-, di- and tri-phosphorylated forms. The difference of a couple of phosphate groups has no significant effect on the overall relative molecular mass of the protein, hence a single band on SDS gels, but the small charge difference introduced on each molecule can be detected by

TLS Online TPP Program

#Question id: 18664

#Unit 13. Methods in Biology

2D electrophoresis is the combination of 

TLS Online TPP Program

#Question id: 18665

#Unit 13. Methods in Biology

In a road accident a forensic scientist collected traces of blood or other biological fluids and he wants to compared samples according to the composition of certain isoenzymes, for this which technique will efficiently work

TLS Online TPP Program

#Question id: 18666

#Unit 13. Methods in Biology

The above figure shows where sample applied was 100 µg of total protein extracted from a normal dog heart ventricle. The first dimension was conducted using a pH 4–7 isoelectric focussing gel. The second dimension was a 12% SDS–PAGE vertical slab gel. The pattern was visualised by silver staining. Which of the following techniques is applied

TLS Online TPP Program

#Question id: 18667

#Unit 13. Methods in Biology

Which of the following is highly sophisticated analytical method for analysing protein mixtures

TLS Online TPP Program

#Question id: 18668

#Unit 13. Methods in Biology

Enzymes and antibody can easily be detected in samples subjected to electrophoresis on cellulose acetate, by using the