From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :

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#Question id: 673

#Part-B Specialized Branches in Biotechnology

How many complete turns are there in an ideal α-helix that contains 15 amino acids and has a pitch of 0.54 nm and a rise of 0.15 nm?

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#Question id: 674

#Part-A Aptitude & General Biotechnology

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

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#Question id: 675

#Part-A Aptitude & General Biotechnology

Which statement is not true about an α-helix?

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#Question id: 675

#Part-B Specialized Branches in Biotechnology

Which statement is not true about an α-helix?

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#Question id: 677

#Part-A Aptitude & General Biotechnology

A helical wheel can be used to show

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#Question id: 678

#Part-A Aptitude & General Biotechnology

Which is not true about β-sheets?