Biological Sciences Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Biological Sciences Interview Questions

Questions Answers Views Company eMail

What factors can change the pKa value of an amino acid residue, and in which direction?

2506

How does the stability of peptides compare with that of amino acids?

2 4090

How does hplc differ from normal column chromatography, and what are its advantages?

2105

What is meant by “cooperative folding” of proteins?

1 3834

Why does ion-exchange chromatography generally use a salt gradient or a pH gradient?

1 6558

What factors cause salting in and salting out of macromolecules?

1 3762

How does molecular exclusion chromatography work?

1 4890

What types of things happen to proteins during posttranslational processing (hydroxylation, etc.)?

1 3206

How can one use the pH and the pKa to determine the acid-base form of a compound?

1 3308

How are free energy changes related to enthalpy changes and entropy changes?

1948

What types of molecules form bilayers?

1 3730

What are the various types of noncovalent attractive forces?

2 4812

Why are right-handed helices more stable than left-handed helices?

2536

How can peptide bonds be made from amino acids without activating the amino acids first?

1 3184

What kinds of compounds are water soluble? Why?

2 4440

Un-Answered Questions { Biological Sciences }

What is the limbic system?

2057

How does ethylene oxide sterilize?

1085

What is the energy source used in active transport through biological membranes?

821

What vector systems to use Transfect or Infect hematopoietic cells?

1663

Explain and define standard feat of formation

1077

Describe the Glycyrrhizin (GL) and cell culture ?

1778

Discuss the modern synthetic theory evolution

1483

Explain about Brucella LPS extraction ?

1958

Define bioremediation?

252

How do quaternary ammonium compounds kill bacteria?

1126

What are some things that have algae in them?

862

Why do you use dbm instead of ncf in the northern blotting and what are the pre-treatments required for this paper to be used?

1013

Define harmonious ecological interaction?

292

Explain how the production of rna called? What is the enzyme that catalyzes the process?

1001

The xylem tissue that carries water is called?

1919

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