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TLS Online TPP Program

#Question id: 16957

the immune system can be summarized as follows. Which is not correct for immune system?

#Unit 4. Cell Communication and Cell Signaling
  1. A cell can become more or less susceptible to the actions of a ligand by increasing (up-regulating) or decreasing (down[1]regulating) the expression of the receptor for that li
  2. Ligand binding to the receptor induces a molecular change in the receptor. This change may be in the form of a conformational alteration in the receptor, receptor dimerization or clustering, a change in the receptor’s location in the membrane, or a covalent modification.
  3. a cell must not receive more than one signal through more than one receptor in order to effect a particular outcome.
  4. Integration of all the signals received by a cell occurs at the molecular level inside the recipient cell.
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TLS Online TPP Program

#Question id: 26507

#Unit 3. Fundamental Processes

Which of the compound are shown below
TLS Online TPP Program

#Question id: 26505

#Unit 3. Fundamental Processes

Which of the splicing snRNPs is common in both major and minor
TLS Online TPP Program

#Question id: 26504

#Unit 3. Fundamental Processes

SR proteins are involved in exon definition in which they interact with U1 and U2AF forming the commitment for
TLS Online TPP Program

#Question id: 26503

#Unit 3. Fundamental Processes

Match the following

 Protein Function
 1. Prp 5 a. helps the release of the mature mRNA from the spliceosome 
 2. Brr 2 b. is responsible for the activation of the spliceosome
 3. Prp 2 c. facilitates U1 and U4 release
 4. Prp 22 d. is critical for U2 binding
TLS Online TPP Program

#Question id: 26502

#Unit 3. Fundamental Processes

Splice sites are directional in nature. 5’ splice site -the left, or donor, site and the 3’ splice site - right, or acceptor, site. So, in below table the complex and their events are given match them correctly .

 Column 1 Column 2
 1. E complex a. Joining of U4/6 and U5 tri-snRNPs
 2. A complex b. U2 addition to base pair with the branch site in the presence of ATP
 3. B1 complex c. Formation of commitment complex in which U1 is base paired with the 5' splice site 
TLS Online TPP Program

#Question id: 26501

#Unit 3. Fundamental Processes

Splice sites are directional in nature