One function of the spliceosome is to Select all that apply

One function of the spliceosome is to: (Select all that apply.)

1) recognize the beginning and end of the exons.

2) recognize the beginning and end of the introns.

3) recognize the 5\' end of the primary transcript.

4) recognize the 3\' end of the primary transcript.

Solution

Answer:

2) Spiceosome recognizes the beginning and end of the introns.

Small nuclear RNA or snRNA play role in RNA spicing. One kind of small nuclear protein which contain snRNA will bind to the 5\' end of the intron and differnt snRNP bind to the 3\' end of the intron. These proteins causes intron to form loop bring the two ends together and large complex of snRNP excises the intron and exons join together ans spliceosome complex releases.