Bio Informatics Interview Questions
Questions Answers Views Company eMail

The mass number of a nucleus is (a) Always less than its atomic number (b) Always more than its atomic number (c) Sometimes more than and sometimes equal to its atomic number (d) None of the above

Wipro,

2 22640

The maximum KE of the photoelectron emitted from a surface is dependent on (a) The intensity of incident radiation (b) The potential of the collector electrode (c) The frequency of incident radiation (d) The angle of incidence of radiation of the surface

Wipro,

1 1957

Which of the following is not an essential condition for interference (a) The two interfering waves must be propagated in almost the same direction or the two interfering waves must intersect at a very small angle (b) The waves must have the same time period and wavelength (c) Amplitude of the two waves should be the same (d) The interfering beams of light must originate from the same source.

Wipro,

1 3545




When X-Ray photons collide with electrons (a) They slow down (b) Their mass increases (c) Their wave length increases (d) Their energy decreases.

Wipro,

1 4586

An electron emits energy (a) Because its in orbit (b) When it jumps from one energy level to another (c) Electrons are attracted towards the nucleus (d) The electrostatic force is insufficient to hold the electrons in orbits.

Wipro,

1 1598

How many bonds are present in CO2 molecule?

Wipro,

2 6305

In a balanced chemical equation (a) Atoms are conserved (b) Molecules are conserved (c) Moles are conserved (d) Reactant and product molecules are preserved.

Wipro,

1 17898

How many grams of NaOH will react with 0.2 equivalent of HCl? (a) 0.59 (b) 0.285 (c) 1.18 (d) none of these.

Wipro,

2 3667




Which of the following is least acidic (a) Ortho-cresol (b) Para-cresol (c) Phenol (d) Meta-cresol.

Wipro,

1 2439

In Reimer-Tiemann?s reaction, the reaction intermediate is (a) Carbene (b) Dichloro carbene (c) Carbonion (d) Carbonium ion.

Wipro, Biotech,

1 7219

Which of the following is most acidic? (a) C2H5OH (b) CH3CHOHCH3 (c) Ethanol (d) CH3OH.

Wipro,

1 3527

A catalyst (a)always slows down the reaction (b)always starts a rection that would not have ocurred at all otherwise (c)causes changes in the rate of the reaction (d)changes the quantities of the products formed.

Wipro,

1 1631

The rate of the first order reaction depends on the (a) Concentration of the reactant (b) Concentration of the product (c) Time (d) Temperature.

Wipro,

1 1752

What is the most abundant element in the universe ?

Wipro,

1 2967

Integrate 3x + 5 / (x3-x2-x+1)?

Wipro,

819


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Un-Answered Questions { Bio Informatics }

What is the criteria for LTQ (LC-MS/MS) SEQUEST search?

1154


Explain about needleman-wunsch algorithm?

1038


What are the main differences between parsimony,distance and likelihood-based algorithms?

898


What is Phantom Gene Sequence?

1151


How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph?

2058






How to predict the function of a gene (product)?

793


What is a homologue?

901


What is enzyme-ligand interaction?

802


Describe the aim of microarray data analysis?

1176


Suppose the Blast search returned 100 hits. Of these, 17 were false positives and we knew that there were 165 sequences in the database which should have returned a hit with our sequence. How many false negatives were there, and what is the sensitivity and selectivity of Blast in this instance?

903


What is the input and outpit of a distance based algorithm?

917


Is there is best online Training for Bioinformatics

1201


How to find flanking region ?

1113


What are the current challenges in the Pharmaceutical and biotechnology sectors?

977


How to find a sequence of dna molecule?

827