3'-polyadenylation of mRNA

The video tutorial covers RNA processing, focusing on splicing, 5' cap formation, and polyadenylation. It explains the role of the spliceosome, the creation of the 5' cap with the help of a cap synthesizing enzyme, and the polyadenylation process involving polyadenylation factors and endonuclease. The tutorial concludes with a brief discussion on the maturation of ribosomal RNA and tRNA, essential for functional ribosome assembly.

What is the primary function of Group One and Two introns?

• To bind to ribosomes

• To assist in DNA replication

• To degrade mRNA

• To self-splice and aid in RNA processing

Which enzyme is responsible for adding the 5' cap to mRNA?

• Poly(A) polymerase

• Cap synthesizing enzyme

• RNA polymerase

• Endonuclease

What is the role of the cap binding complex in mRNA processing?

• To add nucleotides to the 3' end

• To associate with the 5' cap and displace the cap synthesizing enzyme

• To assist in ribosome assembly

• To degrade the mRNA

What sequence is crucial for polyadenylation of mRNA?

• AUG

• AAUAAA

• UAA

• GCUA

Which enzyme is responsible for adding the poly(A) tail to mRNA?

• Cap synthesizing enzyme

• Poly(A) polymerase

• RNA polymerase

• Endonuclease