The location of first hexameric sequence typically found in pro-karyotic promoters is approximately 35 bases upstream of the transcription start site approximately 25 bases upstream of the transcription start site approximately 10 bases upstream of the transcription start site at the transcription start site TRUE ANSWER : ? YOUR ANSWER : ?
The synthesis of mRNA based on a DNA template is called DNA restriction translation transcription DNA replication TRUE ANSWER : ? YOUR ANSWER : ?
A level of regulation, demonstrated by the termination of transcription if tryptophan is abundant, by the tryptophan operon in E.coli cells is called attenuation desiccation activation corepression TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following enzyme is used for synthesis of RNA under the direction of DNA? DNA polymerase DNA ligase RNA polymerase RNA ligase TRUE ANSWER : ? YOUR ANSWER : ?
Recognition/binding site of RNA polymerase is called receptor facilitator promoter terminator TRUE ANSWER : ? YOUR ANSWER : ?
A specific __________ factor helps RNA polymerase bind to late promoters and transcribe late genes. gamma delta sigma beta TRUE ANSWER : ? YOUR ANSWER : ?
What is the usual sequence of a Pribnow box? TATAAT TTGACA UUUUU AUAUA TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement defines a replicon? The enzyme responsible for transposition A DNA molecule that encodes pili for conjugation A DNA template which is used in transcription A DNA molecule that is able to replicate and be maintained TRUE ANSWER : ? YOUR ANSWER : ?
The components found in all prokaryotic transcription terminators is a poly-U region none of these a hairpin structure Rho factor TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following component of RNA polymerase facilitates the recognition of promoter sequences? b subunit s subunit a subunit c subunit TRUE ANSWER : ? YOUR ANSWER : ?