The shortest alpha helix segment in a protein that will span a membrane bilayer has about _____ amino acid residues.

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#Question id: 19040

#Unit 13. Methods in Biology

In chromatography, which of the following can the mobile phase be made of?

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#Question id: 10512

#Unit 6. System Physiology – Plant

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,

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#Question id: 31184

#Unit 4. Cell Communication and Cell Signaling

Which of the following are the central player in the canonical Wnt intracellular signal transduction pathway in vertebrates and in Drosophila respectively? 

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#Question id: 7057

#Unit 5. Developmental Biology

Movement of mesodermal precursor regulated by the factor which is expressed in the primitive streak and repels migrating cells away from the streak. The factor is:

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#Question id: 22019

#Unit 1. Molecules and their Interaction Relevant to Biology

The above plot shows