The toxic shock syndrome toxin is produced by some Salmonella species when there is not sufficient iron present. When iron is present, it prevents transcription of the TSS-toxin gene. Iron therefore serves as __________.

TLS Online TPP Program

#Question id: 32135

#Unit 1. Molecules and their Interaction Relevant to Biology

The net charge on a nucleoside monophosphate is 

TLS Online TPP Program

#Question id: 32136

#Unit 1. Molecules and their Interaction Relevant to Biology

Bonds shown as A, B, C are as

TLS Online TPP Program

#Question id: 32137

#Unit 1. Molecules and their Interaction Relevant to Biology

The degrees of freedom in the sugar–PO4 backbone of DNA chain is/are

TLS Online TPP Program

#Question id: 32138

#Unit 1. Molecules and their Interaction Relevant to Biology

The bond angle of glycosidic bond is

TLS Online TPP Program

#Question id: 32139

#Unit 1. Molecules and their Interaction Relevant to Biology

The core of the helix consists of the base pairs that stack together through

TLS Online TPP Program

#Question id: 32140

#Unit 1. Molecules and their Interaction Relevant to Biology

Successive base pairs in B-DNA show a mean rotation of