Which of the following RNA polymerase synthesize/s tRNA in eukaryotes?
a) RNA polymerase-III
b) RNA polymerase-I
c) RNA polymerase-II
d) all of these
Explanation: tRNA stands for transfer RNA
Which of the following RNA polymerase synthesize/s mRNA in eukaryotes?
a) RNA polymerase-III
b) RNA polymerase-I
c) RNA polymerase-II
d) all of these
Explanation: mRNA stands for messenger RNA
Which of the following strand/s of DNA act as template for transcription?
a) sense strand
b) antisense strand
c) both a and b
d) none of these
Explanation: it is because mRNA is complementary to this strand. The other strand of the gene is called coding or sense strand
What is the direction of RNA polymerase during the elongation phase of transcription?
a) 5’ to 3’ end
b) 5’ to 5’ end
c) 3’ to 5’ end
d) 3’ to 3’ end
The terminator region consists of a series of …….base pairs in termination phase of transcription?
a) TA
b) AT
c) CG
d) GC
Explanation: CG followed by AT base pairs
Post transcriptional modification of mRNA occurs in………
a) prokaryotes
b) eukaryotes
c) both a and b
d) none of these
Explanation: it is not found in prokaryotes because no nucleus is found in prokaryotes and the mRNA is ready for translation
