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: 14861

#Section 4: Fundamentals of Biological Engineering

A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h^{- 1} slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h^{- 1}. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h^-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.

If the concentration of kanamycin in the filter-cake liquid is the same as in the filtrate, how much kanamycin is absorbed per kg filter aid?.,..... 10^-4

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#Question id: 2310

#Section 3: Genetics, Cellular and Molecular Biology

The nucleus is surrounded by 

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#Question id: 16031

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following is the technique used for the embryo culture?

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#Question id: 14107

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Direct submission to GenBank are made using 

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#Question id: 60

#Section 2: General Biology

Which of the following is true for the reaction?

3H₂ + N₂   2NH₃