Addition of urea leads to a two-state transition between α-helix and random coil conformation. It has been observed that [θ]222 of the polypeptide is -11000 deg cm2 dmol-1 in the presence of 6M urea. Initially it was observed that tile values of mean residue ellipticity at 220 nm ([θ]220) are -36000, and +4000 deg cm2 dmol-1 for α-helix, and random coil conformations of this polypeptide. The percentage of the polypeptide in α-helix conformation is:

TLS Online TPP Program

#Question id: 2630

#Unit 2. Cellular Organization

What does graphical representation shown,

TLS Online TPP Program

#Question id: 2631

#Unit 2. Cellular Organization

True statements about genes of galactose metabolism in Yeast;

TLS Online TPP Program

#Question id: 2632

#Unit 2. Cellular Organization

How would transcription of the E. coli trp operon be affected,

I. If Removing sequence 4;

II. Changing several nucleotides in sequence 3 so that it can base-pair with sequence 4 but not with sequence 2;

TLS Online TPP Program

#Question id: 2633

#Unit 2. Cellular Organization

In trp operon leader peptide has Which one is incorrect.

TLS Online TPP Program

#Question id: 2634

#Unit 2. Cellular Organization

Tryptophan, the end-product of the enzymes encoded by the trp operon, therefore acts as a co-repressor and inhibits its own synthesis through:

TLS Online TPP Program

#Question id: 2635

#Unit 2. Cellular Organization

In E. coli, deleting the ribosome binding site and region 1 of the trp attenuator and leaving the remainder of the attenuator intact has which of the following effects?