Phage T7 use its own for expression of late gene promoters. The vectors that are currently widely used for protein expression and purification are based on this.

In many bacteria, cell division is initiated by the protein called _____________________________. 

The common chemical structure present in methicillin and cephalosporin is _________________________________.   

A bacteriostatic antibiotic is capable of lysing the bacterial cells.

DNA damage induced by UV irradiation always causes mutation. 

(1) What is tmRNA? (2) What is its function?

________________________   is a dedicated repair mechanism for cyclobutane dimers which works in the light.

In E. coli chromosomal dimer resolution is dependent on all of the following, except:

The specificity of aminoacyl-tRNA is determined by the enzyme ______________________________ which attaches specific amino acids to their matching tRNAs. 

Methyl- directed mismatch repair (MDMR) depends on: