The technical department enthusiastically hired Ms. Long because she was proficient in the use of computers.

#Question id: 8291

#Unit 9. Diversity of Life Forms

Which of the following pairs are the best examples of homologous structures?

#Question id: 21110

#Unit 12. Applied Biology

#Question id: 24223

#Unit 1. Molecules and their Interaction Relevant to Biology

#Question id: 886

#Unit 1. Molecules and their Interaction Relevant to Biology

An experiment of Anfinsen on ribonuclease A (RNase A) showed that proteins can be denatured reversibly by 2-mercaptoethanol and 8 M urea. The protein must therefore renature spontaneously;

a) Remove mercaptoethanol and then removal of the urea

b) Removal of the mercaptoethanol allows the protein to re-form disulfide bonds in the presence of oxygen and then removal of the urea

c) Removal of the denaturant (urea) and reductant (mercaptoethanol) allows the protein to renature and re-form disulfide bonds in the absence of oxygen

d) Adding a small amount of mercaptoethanol to the scrambled protein in the absence of O2 catalyzes its conversion to the active enzyme

Which one of the following steps will leads to regaining of the full activity of ribonuclease A (RNase A)

#Question id: 19812

#Unit 12. Applied Biology