Which is not part of the lac operon?

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#Question id: 12999

#Section 2: General Biology

Proline and glycine both disturb the symmetry of α-helix which of the following are true regarding to these two amino acids

a) proline changes the orientation of hetropolymeric α-helix hence proline can be placed only as 1st amino acid residue near to C-terminus 

b) proline changes the orientation of polymeric α-helix hence proline can be placed only as 1st amino acid residue near to N-terminus

c) glycine disrupts the heteropolymeric α-helix by changing the helicity.

d) homopolymer of proline and glycine can form stable helix. 

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#Question id: 10796

#Section 6: Plant, Animal and Microbial Biotechnology

Flavonoids are one of the largest classes of plant phenolics, structure of flavonoids;

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#Question id: 1987

#Section 2: General Biology

A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to

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#Question id: 14407

#Section 2: General Biology

Most gram-negative bacteria are not as susceptible to penicillin as gram-positive bacteria are because

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#Question id: 1873

#Section 2: General Biology

Mutations in the gene encoding which of the following most commonly results in severe combined immunodeficiency (SCID)?