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?

1913

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

2263

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?

1995

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?

2333

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 3518

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

2048

what is pollen prepotency?

4 15003

Why are Plasmodiophoromycetes not true fungi?

3125

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?

2025

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

1940

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

1 17633

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

1 3661

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

1992

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

2028

Name the closed sexual fruiting body of powdery mildew fungi?

2 4930

Un-Answered Questions { Biological Sciences }

Explain how many hours in a day to cat spend sleeping?

925

What is the importance of the primary structure?

1232

What are the morphological & anatomical differences between poisonous & non poisonous snakes?

2441

What are abiotic factors?

382

How to stain bacteria endospores using fluorescent stain ?

2170

What are the functions of placenta?

Explain the importance of fungi in medicine?

3223

What are some examples of chemical and physical changes?

992

What does glycolysis in erythrocytes produce?

1156

1995

Explain global warming?

305

Which vitamins participate, in coenzyme form, in reactions of the tricarboxylic acid cycle?

2187

What is the difference between prokaryotes and eukaryotes?

890

Explain the basic principles of regulation?

837

What are biomass pyramids? What do they represent?

310

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