TLS Online TPP Program

#Question id: 130


An amino acid with two chiral carbon atoms

#Zoology
  1.  is unstable.

  2. can exist in 4 forms all of which are superimposable.

  3. can form three possible stereoisomers.

  4. can form four possible stereoisomers.

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TLS Online TPP Program

#Question id: 23146

#Applied Microbiology

A phenomenon of absorption of light at a certain wavelength and then emission at longer wavelength is known as

TLS Online TPP Program

#Question id: 23147

#Zoology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?

TLS Online TPP Program

#Question id: 23147

#Life Sciences

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?

TLS Online TPP Program

#Question id: 23147

#Applied Microbiology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?

TLS Online TPP Program

#Question id: 23148

#Zoology

There are two proteins A and B to be visualized under fluorescence microscopy. Both of them are excited with same wavelength of light but A emits longer wavelength. Hence we can conclude that 
1. A is denser molecule than B
2. B is denser molecule than A
3. A is lighter molecule than B
4. B is lighter molecule than A
Which of the following option is incorrect?

TLS Online TPP Program

#Question id: 23148

#Life Sciences

There are two proteins A and B to be visualized under fluorescence microscopy. Both of them are excited with same wavelength of light but A emits longer wavelength. Hence we can conclude that 
1. A is denser molecule than B
2. B is denser molecule than A
3. A is lighter molecule than B
4. B is lighter molecule than A
Which of the following option is incorrect?