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

How the malaria parasite evades detection by the human immune system?

1 5081

What is the procedure for Milk ring test?

4 28265

What are the Pigments produced by Pseudomonas aeruginosa?

1 7221

Name four culture media used for Vibrio cholerae?

1 6629

What are the Two rapid tests for diagnosis of cholera?

1 4137

What is Cholera red reaction ?

1 15481

Name Escherichia coli groups causing diarrhoea?

1 3995

What is EPEC?

2 6998

The peptide bond in proteins is a) nonpolar, and fixed in a trans conformation. b) nonpolar, but rotates to three preferred dihedral angles. c) planar, and usually found in a trans conformation. d) planar, but rotates to three preferred dihedral angles.

1 3939

If the enthalpy change for a reaction is zero, DG? is equal to: a) DH? b) lnKeq c) TDS? d) -TDS?

1 3812

The nucleophile in the first stage of the serine protease mechanism is a) H2O b) the carboxyl of Asp 102 c) the hydroxyl of Ser 195 d) the imidazole of His 57

2132

The elution volume of an enzyme on a gel filtration column can be predicted from a) its enzyme activity b) its protein absorbance at 280 nm c) subunit composition and monomer molecular mass(es) d) Choices a) and b) are both correct.

3258

DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.

2117

The two exonuclease activities of DNA polymerase I a) are coupled during the formation of "gapped DNA". b) degrade DNA in a 5' --> 3' direction. c) degrade DNA in a 3' --> 5' direction. d) occur at two different active sites.

1 3293

A principal difference between prokaryotic and eukaryotic DNA replication is a) completely different proteins/enzymes in eukaryotes b) multiple origins in eukaryotes c) no requirement for topoisomerase activity in prokaryotes d) the absence of a nucleus in prokaryotes

9 36783

Un-Answered Questions { Biological Sciences }

How is the role of regional fishery bodies changing?

2119

What is the relation between vitamins and enzyme cofactors?

1198

Describe the structure of a catkin with regard to sex and completeness of the flowers.

2018

Which cells in human body do not have any blood supply?

1018

Which is the largest indian deer?

953

Explain the Thawing of competent bacterial cells ?

2066

What is gastrulation? How during gastrulation are the &rst two germ layers formed? Which are these germ layers?

Explain the main characteristics of the age pyramids of developed countries?

361

What is a vesicle?

911

Ionic compound does not show the property of space isomerism, Give the reason?

1243

what steps or advice would you recommend for me to good an perpared for this type of career

2226

What is dry mass?

334

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

1999

what does the storage tissue in a seed do?

1903

how to culture monocytes from macrophages in blood?

1995

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