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?

1951

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

2322

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?

2037

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 3576

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

2098

what is pollen prepotency?

4 15131

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?

1993

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

1 17694

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

1 3733

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

2053

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

2075

Name the closed sexual fruiting body of powdery mildew fungi?

2 5032

Un-Answered Questions { Biological Sciences }

What are pleura?

Explain about the Standard strain with fimbriae of Klebsiella pneumoniae ?

2076

To which structures do coeloms give birth? Are all animals coelomate?

Which kingdom does starfish belong to?

1237

What is the typical vegetation of the tropical forests?

376

Explain how much salt is in the human body?

951

What is Co-ordination number?

1223

What a test tube brush and how is it used?

924

Explain who proposed law of mass action? What does it states?

1256

What does law of mass action states?

1193

DMSO or Ethanol which is relatively less toxic to cells?

2751

What are the differences between the age pyramids of developed and under developed countries?

469

In which country kiwi is found?

1231

What is cyclosis?

963

What happens when the cell membrane or plasma membrane ruptures or breaks down?

910

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