Black-and-white camera film, in the old days of film photography, was very sensitive to blue light but not to red light. Blue skies would often show very little detail, because the film couldn’t record all that it was seeing. To compensate, photographers would put a red filter on the lens, darkening the sky enough that the film could record its fluffy clouds.

This paragraph best supports the statement that

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

TLS Online TPP Program

#Question id: 26500

#Unit 3. Fundamental Processes

Choose the correct statement 

1.UACUAAC is branch point sequence for U2 type introns 

2.UACUAAC is branch point sequence for U12 type introns

3.CCUUAAC is branch point sequence for U12 type introns

4.CCUUAAC is branch point sequence for U2 type introns

TLS Online TPP Program

#Question id: 26499

#Unit 3. Fundamental Processes

There are three type of Splicing signals 1. Major U2-type or GU-AG introns 2. Minor U12-type or AU-AC introns & 3. Minor U12-type with GU-AG introns (hybrid type), which of the following is responsible for the recognition of branch point sequence UACUAAC?