What is a promoter? A specific DNA sequence to which a restriction endonuclease binds A specific sequence of DNA to which RNA polymerase binds None of these A specific sequence of DNA to which a catabolic repressor binds TRUE ANSWER : ? YOUR ANSWER : ?
The regions of a gene located at -10 and -35, with respect to the start of transcription, are termed Shine Dalgarno sequences. promoters. start codons. oriC regions. TRUE ANSWER : ? YOUR ANSWER : ?
Transcription of each set of rRNA genes by RNA polymerasel produces a single 18S rRNA precursor molecule a single 45S rRNA precursor molecule a single 5S rRNA precursor molecule a single 28S rRNA precursor molecule TRUE ANSWER : ? YOUR ANSWER : ?
RNA polymerase holoenzyme initiates transcription which involves None of these recognition of the -10 sequence and -35 sequence recognition of the -35 sequence only recognition of the -10 sequence only TRUE ANSWER : ? YOUR ANSWER : ?
RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________ replication, DNA polymerase transcription, RNA polymerase translation, RNA polymerase transcription, DNA polymerase TRUE ANSWER : ? YOUR ANSWER : ?
Upstream regions which are essential for correct transcription are called transcription factors enhancers promoters start codons TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following conditions would cause the release of the lac repressor protein from the lac operator site on DNA? Presence of glucose in the growth media Presence of lactose in the growth media Presence of IPTG (isopropyl thiogalactoside) in the growth media Both (b) and (c) TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is necessary for transcription to occur? DNA polymerase DNA molecule Both DNA & RNA polymerase RNA polymerase TRUE ANSWER : ? YOUR ANSWER : ?
The nucleons of eukaryotic cell has RNA polymerase I RNA polymerase II RNA polymerase III all of these TRUE ANSWER : ? YOUR ANSWER : ?
The major function of RNA polymerase's sigma factor is recognition of the translational start sequence recognition of the transcriptional start sequence recognition of the translational stop sequence recognition of the transcriptional stop sequence TRUE ANSWER : ? YOUR ANSWER : ?