Which of the following statement defines a replicon?
A DNA molecule that encodes pili for conjugation
A DNA molecule that is able to replicate and be maintained
A DNA template which is used in transcription
The enzyme responsible for transposition
Which of these catalyzes the synthesis of RNA from a DNA template?
Which of the following enzyme(s) is/are required for lactose fermentation?
All of these
A specific ..... factor helps RNA polymerase bind to late promoters and transcribe late genes.
A level of regulation, demonstrated by the termination of transcription if tryptophan is abundant, by the tryptophan operon in E.coli cells is called
Which eukaryotic RNA polymerase makes tRNA's?
RNA polymerase 1
RNA polymerase 2
RNA polymerase 3
Any of these
The location of first hexameric sequence typically found in pro-karyotic promoters is
at the transcription start site
approximately 35 bases upstream of the transcription start site
approximately 10 bases upstream of the transcription start site
approximately 25 bases upstream of the transcription start site
What is the usual sequence of a Pribnow box?
The components found in all prokaryotic transcription terminators is
a poly-U region
a hairpin structure
none of these
Which of the following component of RNA polymerase facilitates the recognition of promoter sequences?
There are 10 questions to complete.