Eukaryotic chromosomes are composed of which of the following macromolecules?

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#Question id: 10740

#Unit 10. Ecological Principles

Change in community structure through time is termed

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#Question id: 19891

#Unit 12. Applied Biology

Which one of the following sensors uses light?

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#Question id: 23535

#General Aptitude

The most controversial amendment passed during the emergency was?

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#Question id: 1395

#Unit 4. Cell Communication and Cell Signaling

Which of the following mutations would promote malignancy in cells whose proliferation is inhibited by TGFβ?

a. overexpression of Smad2               

b. loss of Smad 4

c. overexpression of TGFβ receptor I

d. loss of TGFβ receptor II

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#Question id: 1268

#Unit 4. Cell Communication and Cell Signaling

The collagen triple-helix domain

a. is rich in glycine.                             b. is rich in proline.

c. is rich in hydroxyproline.                d. is an alpha helix.