Insulin has an AB heterodimer structure with intrachain  and interchain disulfide bridges  such as___

I- One intrachain disulfide bridges (A6-A11) 

II- Two interchain disulfide bridges (A7-B7 and A20-B19)

III- two intrachain disulfide bridges (A6-A11 and A20-B19) 

IV- one interchain disulfide bridges (A7-B7 )

TLS Online TPP Program

#Question id: 18918

#Unit 14. Methods in Biology

Recognition Sequences for Some Type II Restriction Endonucleases 

Match them correctly

TLS Online TPP Program

#Question id: 18919

#Unit 14. Methods in Biology

What are REP1 and REP2 genes in the plasmid used for?

TLS Online TPP Program

#Question id: 18920

#Unit 14. Methods in Biology

Which selection system is used in a yeast plasmid recombinant?

TLS Online TPP Program

#Question id: 18921

#Unit 14. Methods in Biology

What is an auxotrophic mutant?

TLS Online TPP Program

#Question id: 18922

#Unit 14. Methods in Biology

For which of the following plasmids purification of a recombinant molecule from the transformed cell can be difficult?

TLS Online TPP Program

#Question id: 18923

#Unit 14. Methods in Biology

lacZ' gene present in a Puc series plasmid codes for which of the enzyme?