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

What is the difference in terms of connectivity between a scale free network and random network?

1953

What two possibilities are there to describe how gene fragments may have evolved?

2323

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?

2041

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?

2382

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?

1 3577

What is the idea behind ?weighting? sequences in the package CLUSTAL W for multiple alignment? How are these weights calculated?

2100

what is pollen prepotency?

4 15134

Why are Plasmodiophoromycetes not true fungi?

3174

You receive a package that contains plants that may have been injured by herbicide drift or may have a virus. With no further information, how might you determine which is the problem?

2073

For which nematode problem would you suggest use of a genetically resistant cultivar and why?

1995

What is an advantage and a disadvantage to the use of meristem culture for the production of propagative plant material ?

1 17697

Who provided the experimental evidence that led to the gene- for-gene theory?

1 3734

What are 2 features of Oomycetes that exclude them from the true Fungi?

2055

What are 2 ways that bacterial diseases are different from most fungal diseases of plants?

2077

Name the closed sexual fruiting body of powdery mildew fungi?

2 5040

Un-Answered Questions { Biological Sciences }

Explain the main limitations for population growth

476

How do you isolate the various bioactive ingredients from a plant extract?

2035

What are the units of ph?

1173

What is a flying squirrel?

1178

Name the dog which is is not a dog?

1041

What is the anhydride of n2o5?

1118

What is ammensalim?

345

Which electrode acts as reference electrode and gives its potential value?

1135

What are chloroplasts? What is the main function of chloroplasts?

940

Explain the importance of pseudomonas?

2249

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

1095

Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes? How the human karyotype is usually represented?

894

Name the first synthetic organic compound. Who proposed it and from which compound?

1121

The blooms of these protists gives water a watermelon-like taste. What is this microlife called?

2381

what do you know about Retroviral transduction of mouse t lymphocytes ?

1788

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