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Biological Sciences Interview Questions
Questions Answers Views Company eMail

What are the main signals used for gene finding in prokaryotic genomes? How are these signals introduced into the search algorithms?

1 3612

What are the main approaches of predicting protein interactions using genomic context analysis?

1 4108

What is the main idea of maximum parsimony in phylogenetic tree construction? What are the drawbacks?

2 6196

Bootstrap analysis evaluates evolutionary trees by sampling columns from the original alignment with replacement (multiplying or removing some of them) and computing a proportion of times that a particular branch appears in the resulting trees. What is the main idea behind this approach?

2220

Which of the following sequences contains the pattern [AG]-x (4)-G-K-[ST] from the PROSITE database? seq. A: VAGWGKST seq B: GVLKRGKS seq. C: AGVLKGRT seq. D: AGVGKSTP

5 7714

If a match from a sequence database search is reported to have an E-value of 0.0, should it be considered highly insignificant or highly significant?

3 5929

Suppose you used the NCBI Blast server to look for a match to a fruit-fly gene. Suppose further that the best alignment contained this section of an alignment: Hit from database: XXXXXXXXXXXXXXNFSTSQ user sequence: SLEAEAAPASISPSNFSSSQ What do the Xs signify?

Infosys,

4 8227

How you caluculate sensitivity and selectivity of Blast?

2 8758

You have been provided with a set of plates of fungi isolated from a diseased leaf, one Chytridiomycota, one Zygomycota, one Ascomycota and one Basidiomycota. The signs of infection indicate that the disease has been caused by a member of Ascomycota which does not form a sexual stage easily. What features would you look for in your isolates to indicate if the target fungus was present?

1989

What are the hyphal features of Ascomycota?

1 4209

In cleared and stained root material you have seen structures that appear to be empty sacs in the epidermal cells with ostioles that exit to the soil. Which division are these fungi likely to be from?

2176

A sexual spore is formed in a culture from a single isolate. An attachment is found on either side of a sac- like structure, which encloses the spore. Which division does the fungus come from?

1 3384

Toxin X is released only in mature spores of a single fungus and only when both alleles at a single locus are present. The toxin is never observed when the alleles are together in hyphae or modified hyphae. What division is the fungus found in?

TT,

2127

What are the symptoms of Multiple sclerosis?

1 4474

What does the Haversian (central) canal in each osteon contains?

3279


Un-Answered Questions { Biological Sciences }

What is cell immunofluorescence ?

1917


Name the largest indian deer?

1025


Is Genetic engineering the best of solution?

2091


what is Cell membrane marker?

1927


Explain how long does a dolphin sleep?

1149


How do you call the geometrical isomerism, similar groups are present on same side?

1056


What is the importance of the primary structure?

1245


What is yolk sac?

1


What is the element in third series the element with maximum oxidation state?

1077


How does iodine kill germs?

955


what is the advanteg of ricombinant antigen?& what is the advanteg of sinthethick antigen? and advanteg of both?

2471


Suppose you are heterozygous for a mutant beta-thalassemia allele. If the frequency of beta-thalassemia is 1/1600 persons, what is the probabilty that your prospective spouse is heterozygous for a mutant beta-thalassemia allele?

2082


Which amount of DMEM and Glutamine should be commaneded ?

2190


Name the instrument used for sequencing proteins automatically?

1055


Explain the Procedure for Testing for binding of mutant proteins to cell surface receptors?

1845