Which of the following statements is the single best defining characteristic of a follicular dendritic cell (FDC)?

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#Question id: 5241

#XL - S Microbiology

Genes a, b, and c are widely spaced in the bacterial genome. Transducing phage from an a+ b+ c+ bacterium were used to infect a culture of a- b- c- cells, and b+ transductants were selected. Which of the following best describes the predicted genotypes of these transductants?

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#Question id: 11151

#XL - S Microbiology

What conclusion can be drawn validly from these data?

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#Question id: 2119

#XL - S Microbiology

A sodium-potassium pump:

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#Question id: 11384

#XL - R Botany

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: 16869

#General Aptitude

Hardly had he left ………. his brother came.