Transcription and Regulation – Section 1

26. In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

A. RNA polymerase I
B. RNA polymerase II
C. RNA polymerase III
D. none of these

Correct Answer: B. RNA polymerase II

27. The nucleons of eukaryotic cell has

A. RNA polymerase I
B. RNA polymerase II
C. RNA polymerase III
D. all of these

Correct Answer: D. all of these

28. Upstream regions which are essential for correct transcription are called

A. enhancers
B. start codons
C. promoters
D. transcription factors

Correct Answer: C. promoters

29. Transcription of each set of rRNA genes by RNA polymerasel produces

A. a single 45S rRNA precursor molecule
B. a single 5S rRNA precursor molecule
C. a single 18S rRNA precursor molecule
D. a single 28S rRNA precursor molecule

Correct Answer: A. a single 45S rRNA precursor molecule

30. The regions of a gene located at -10 and -35, with respect to the start of transcription, are termed

A. start codons.
B. oriC regions.
C. Shine Dalgarno sequences.
D. promoters.

Correct Answer: D. promoters.

Warning: Undefined variable $in_same_cat in /www/wwwroot/mtexam.com/public_html/wp-content/plugins/EXP.GKFEED.COM/function.php on line 27

Warning: Undefined variable $excluded_categories in /www/wwwroot/mtexam.com/public_html/wp-content/plugins/EXP.GKFEED.COM/function.php on line 27

Leave A Comment?