In the egg,_______ contains proteolytic enzymes that are released by exocytosis after fertilization and are important for preventing polyspermy.

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#Question id: 4315

#Unit 3. Fundamental Processes

A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. When she finds that the introduced strand separates into single-stranded RNAs, what other evidence of this single-stranded RNA piece's activity would she find?

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#Question id: 12466

#Unit 10. Ecological Principles

Which of the following is a density-independent factor that could limit a population of high-altitude butterflies?

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#Question id: 5379

#General Aptitude

The average weight of three brothers is 68 kg . If their weights are in the ratio 3:4:5, the weight of the heaviest of the three brothers is.

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#Question id: 194

#Unit 1. Molecules and their Interaction Relevant to Biology

Which does not return to its original form after each catalysis?

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#Question id: 31303

#Unit 5. Developmental Biology

In birds, primitive groove is homologous to the: