Which of the following is incorrect regarding to α-helix

a) In the α helix, the first four NH groups and last four CO groups will normally lack backbone  hydrogen bonds.

b) the length of an amino acid in α-helix reduced almost 3 times than linear structure.

c) the frequent occurrence of Pro and Gly residues favour α-helix formation.

d) dihedral (ϕ and ψ) angle should be close to -57 and -47.

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#Question id: 60

#Section 2: General Biology

Which of the following is true for the reaction?

3H₂ + N₂   2NH₃

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#Question id: 5256

#Section 3: Genetics, Cellular and Molecular Biology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?

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#Question id: 15109

#Section 1: Engineering Mathematics

The following equations have solutions

x + 2y — z = 3

2x — 2y + 3z = 2

3x — y + 2z =1

x — y + z = —1 

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#Question id: 8919

#Section 6: Plant, Animal and Microbial Biotechnology

The last common ancestor of all animals was probably a

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#Question id: 560

#Section 2: General Biology

Vmax for an enzyme-catalyzed reaction: