#Question id: 4503
#Unit 3. Fundamental Processes
Pol I transcribes the human rRNA genes, the promoter for the rRNA gene comprises two parts: the core element and the UCE (upstream control element), for initiation there are two factors-
#Question id: 4504
#Unit 3. Fundamental Processes
What will be the molecular weight of poly(A) chain consisting of 100 residues, where weight of AMP is 500?
#Question id: 4505
#Unit 3. Fundamental Processes
Symplekin protein is participats in which of the following processes;
#Question id: 4506
#Unit 3. Fundamental Processes
Which process is very much similar to polyadenylation, because its takes place by the multiple protein complexes,
#Question id: 4507
#Unit 3. Fundamental Processes
A group of introns that-unlike those we have considered thus far-can splice themselves out of pre-mRNA without the need for the spliceosome, they are called
#Question id: 4508
#Unit 3. Fundamental Processes
Statement: In the case of group II introns, the chemistry of splicing and the RNA intermediates produced are the same as those for nuclear pre-mRNA.
Explanations: I. The intron uses an A residue within the branch site to attack the phosphodiester bond at the boundary between its 5’ end and the end of the 5’ exon-that is, at the 5’ splice site. This reaction produces the branched lariat.
II. A second reaction in which the newly freed 3’ -OH of the exon attacks the 3’splice site, releasing the intron as a lariat and fusing the 3’ and 5’ exons.