Deletion of which gene not only was accompanied by the abolition of antibiotic formation but also severely impaired growth on agar media.

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#Question id: 16486

#12. Applied Biology

A technique which has been successfully maintaining  long term culture upto 4-5 months is

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#Question id: 374

#1. Molecules and their Interaction Relevant to Biology

The pH of a sample of blood is 7.4, while gastric juice is pH 1.4.  The blood sample has:

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#Question id: 11675

#7. System Physiology – Animal

Processing of filtrate in the proximal and distal tubules:

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#Question id: 11406

#10. Ecological Principles

Which of the following is true for a critically endangered species?

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#Question id: 11411

#10. Ecological Principles

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct