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

Genetics (207)
Botany (781)
Zoology (409)
Cell Biology (461)

Biological Sciences Interview Questions

Questions Answers Views Company eMail

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

1 5085

What is the procedure for Milk ring test?

4 28276

What are the Pigments produced by Pseudomonas aeruginosa?

1 7223

Name four culture media used for Vibrio cholerae?

1 6640

What are the Two rapid tests for diagnosis of cholera?

1 4142

What is Cholera red reaction ?

1 15488

Name Escherichia coli groups causing diarrhoea?

1 4001

What is EPEC?

2 7006

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 3943

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

1 3817

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

2135

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.

2123

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 3300

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 36810

Un-Answered Questions { Biological Sciences }

Explain how much salt is in the human body?

899

what is the method for seperartion of spheroplasts?

2148

How yolk sac is formed?

How different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial population?

421

What does GMO stands for and what importance does it has in bio-technology field?

1202

What benefits can commensalism offer to a species?

302

can we induce hairy roots in Rauvolfia serpentina? What are the main steps in which we have to care?

2317

Can solutions with same concentration of different solutes have different osmotic pressures?

883

what is macrophage suspension ?

1917

Explain the main interspecific ecological interactions?

361

Hi, I am venkat. I am done with M.Sc Medical Biochemistry in the year 2007. I got rejected 3 times at US consulate, and the reason they say is why are you going agian for PG when you have already done PG, and they are not ready to get convinced only on this issue.

2139

What are mitochondria?

1011

What is an erlenmeyer flask and how is it used?

1007

Explain how many arms does an octopus have?

1091

Explain the procedure for Rhamnolipid production test ?

2515

For More Un-Answered { Biological Sciences } Questions Click Here