Bio Informatics Interview Questions

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A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?

954A man speaks the truth 3 out of 4 times. He throws a die and reports it to be a 6. What is the probability of it being a 6?

An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?

If the sum of n terms of two series of A.P are in the ratio 5n+4:9n+6 .find the ratio of their 13th terms

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

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Un-Answered Questions { Bio Informatics }

Define perl and clustalW problem?

Draw the E-R diagram for the database of a departmental store having the following relational database scheme Employees(e-no, address) Department(d-name) work-n(e-no, d-name) Looking-after(d-name, e-no) Item (item-no, brand-name, model-no, cost-price, sale-price)

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?

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?

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

What are oesophageal molecular markers?

How do ESTs work?

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

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

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

What is C-compliator?

How to Insert Genomic DNA into yeast ?

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

How to Count number of nucleotide substitutions ?

An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?