TLS Online TPP Program

#Question id: 23880


Which of the following tools of recombinant DNA technology is incorrectly paired with its use?

#Unit 13. Methods in Biology
  1. restriction enzyme–production of RFLPs
  2. DNA ligase–enzyme that cuts DNA, creating the sticky ends of restriction fragments
  3. DNA polymerase–used in a polymerase chain reaction to amplify sections of DNA
  4. reverse transcriptase–production of cDNA from mRNA
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TLS Online TPP Program

#Question id: 28061

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following force/Bonds contributes to protein stability  
a. van der Waals interactions
b. Ionic interaction
c. Hydrogen bond 
d. Di-sulphide bond

TLS Online TPP Program

#Question id: 28062

#Unit 1. Molecules and their Interaction Relevant to Biology

Thermostable proteins are stable at high temperature due to

a. Vander Waals interaction

b. Ionic bond only

c. High protein’s hydrophobic core 

d. high incidence of salt bridges

Which of the following is correct 

TLS Online TPP Program

#Question id: 28063

#Unit 1. Molecules and their Interaction Relevant to Biology

Characteristics of Thermostable proteins are  
a. loosely packed core as evidenced by a high surface-to-volume ratio.
b. High amounts of Arg
c. High amount of Ala in helices
d. Stable at high temperature due to High protein’s hydrophobic core and high incidence of salt bridges

TLS Online TPP Program

#Question id: 28064

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following Techniques can be used to for Measuring Stability of protein    
a. DSC (calorimetry) 
b. Urea gradient gels 
c. FRET
d. EPR
Which of the following is correct

TLS Online TPP Program

#Question id: 28065

#Unit 1. Molecules and their Interaction Relevant to Biology

Guanidinium ion and urea are  

TLS Online TPP Program

#Question id: 28066

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following parameter is measured during analysis for the Stability of protein by DSC (calorimetry)