What radioactive molecule is used to end-label an oligonucleotide?

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#Question id: 19007

#Unit 13. Methods in Biology

For the separation of which of the following substances, Gas-solid chromatography is being used?

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#Question id: 12427

#Unit 10. Ecological Principles

Trophic efficiency is

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#Question id: 12250

#Unit 10. Ecological Principles

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i)    P is closer to the mainland than Q

(ii)   P is further away from the mainland than Q

(iii)  P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

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#Question id: 811

#Unit 1. Molecules and their Interaction Relevant to Biology

Protein S will fold into its native conformation only when protein Q is also present in the solution.  However, protein Q can fold into its native conformation without protein S.  Protein Q, therefore, may function as a ____________ for protein S.

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#Question id: 19811

#Unit 12. Applied Biology

cDNA of RNA satellite

1. Interferes with virus replication

2. Symptom development

3. Interferes with bacterial satellite

Which of the following options is correct?