Termination is a normal and important function at the ends of genes. There, sequences called terminators trigger the elongating polymerase to dissociate from the DNA and release the RNA chain it has made, In bacteria, terminators come in two types: Rho-dependent and Rho-independent, choose correct statements about this;

Rho-dependent	a- rut sites
	b- has an ATPase activity
Rho-independent	c- terminates only those transcripts still being transcribed beyond the end of a gene or operon
	d- intrinsic terminator

#Question id: 4501

#Unit 3. Fundamental Processes

According to Models of termination: torpedo and allosteric, which one is now the favored and why;

A. The Rat1 enzyme is very processive and quickly degrades the RNA in a 5’ -to-3’ direction, until it catches up to the still-transcribing polymerase from which the RNA is being spewed.

B. Termination depends on a conformational change in the elongating polymerase that reduces the processivity of the enzyme leading to spontaneous termination soon afterward.

#Question id: 4502

#Unit 3. Fundamental Processes

Which one is the only GTF that is used by Pol I and Pol III as well as by Pol II, it has emerged recently that some of the other GTFs

#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,