A polyA tail is added to: 

TLS Online TPP Program

#Question id: 33231

#Unit 1. Molecules and their Interaction Relevant to Biology

Which character makes concerted acid–base catalysis a common enzymatic mechanism?

TLS Online TPP Program

#Question id: 33232

#Unit 1. Molecules and their Interaction Relevant to Biology

In RNase A 

TLS Online TPP Program

#Question id: 33233

#Unit 1. Molecules and their Interaction Relevant to Biology

The pH dependence of the rate of the RNase A reaction suggests the involvement of 

a. Two ionizable residues with pK values of 5.4 and 6.4

b. Single ionizable residue with pK values 7

c. Cytosine residue in active site

TLS Online TPP Program

#Question id: 33234

#Unit 1. Molecules and their Interaction Relevant to Biology

The form of catalysis is often also called nucleophilic catalysis

TLS Online TPP Program

#Question id: 33235

#Unit 1. Molecules and their Interaction Relevant to Biology

The form of catalysis primarily caused by ser, tyr, cys and asp is

TLS Online TPP Program

#Question id: 33236

#Unit 1. Molecules and their Interaction Relevant to Biology

Thiamine pyrophosphate and Pyridoxal phosphate, function in association with their apoenzymes as