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TLS Online TPP Program

#Question id: 58

A covalent chemical bond is one in which ________.

#Section C (Domain-Specific Knowledge)

  1. electrons are removed from one atom and transferred to another atom so that the two atoms become oppositely charged

  2. protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms

  3. outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals

  4. outer-shell electrons of one atom are transferred to fill the inner electron shell of another atom

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TLS Online TPP Program

#Question id: 27070

#Section C (Domain-Specific Knowledge)

Which of the following statements is correct regarding the stereochemistry of Thr, Ile 
1. Thr, Ile is special case because of two chiral center exist in L-Ile in 2R,3S and L-Thr in 2R,3S configuration 
2. Thr, Ile is special case because of two chiral center exist in D-Ile in 2R,3S and D-Thr in 2R,3S configuration 
3. Thr, Ile is special case because of two chiral center exist in L–Ile in 2S,3R and L–Thr in 2S,3R 
4. Thr, Ile is special case because of two chiral center exist in D–Ile in 2S,3R and D–Thr in 2S,3R
TLS Online TPP Program

#Question id: 1232

#Section C (Domain-Specific Knowledge)

Which of the following mutations might confer a competitive advantage to an athlete by raising his or her hematocrit?

a. excess production of erythropoietin                       

b. decreased production of erythropoietin

c. EpoR that cannot bind STAT5                  

d. EpoR that cannot bind SHP1

e. EpoR that cannot bind JAK2
TLS Online TPP Program

#Question id: 88

#Section C (Domain-Specific Knowledge)

Anomers can be interconverted ________.
TLS Online TPP Program

#Question id: 27159

#Section C (Domain-Specific Knowledge)

This event can cause a damage to the hypothalamus portal system
TLS Online TPP Program

#Question id: 294

#Section C (Domain-Specific Knowledge)

Which of the following pairs of amino acids would you predict to only participate in Van der Waals interactions in the three dimensional folding of a protein:
TLS Online TPP Program

#Question id: 27210

#Section C (Domain-Specific Knowledge)

Charge on one mol of electron is approximately equal to