During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:

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#Question id: 672

#XL - Q Biochemistry

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?

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#Question id: 674

#XL - Q Biochemistry

Proline is not often found in a-helices of proteins because it

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#Question id: 675

#XL - Q Biochemistry

Which statement is not true about an α-helix?

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#Question id: 676

#XL - Q Biochemistry

What would you expect about the formation of an α-helix for a segment of a protein chain that contains lysine approximately every fourth residue with all other residues being mostly hydrophobic?

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#Question id: 683

#XL - Q Biochemistry

Which factor does not help to explain why many proteins exhibit quaternary structure?

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#Question id: 684

#XL - Q Biochemistry

Protein subunits in a multisubunit protein are held to each other primarily by