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1. The mRNA produced when the following sense strand DNA sequence is transcribed

ID: 552776 • Letter: 1

Question

1. The mRNA produced when the following sense strand DNA sequence is transcribed is:

5’- AATTTCCCAATCATCCAT -3’

A) 5’- UUAAAGGGUUAGUAGGUA -3’

B) 5’- AAUUUCCCAAUCAUCCAU -3’

C) 5’- UACCUACUAACCCUUUAA -3’

D) 5’- TACCTACTAACCCTTTAA -3’

E) 5’- AUGGAUGAUUGGGAAAUU -3’

I answered E because its reading from 5' to 3' but I was incorrect

2. RNA polymerase in prokaryotes:

A) initiates polymerization by recognizing a promoter sequence.

B) transcribes both the coding strand and the template strand.

C) requires a primer

D) is a monomeric enzyme.

E) reads from the 5’ to 3’ end of the DNA.

Explanation / Answer

Ans 1 B) 5’- AAUUUCCCAAUCAUCCAU -3’

The sequence of sense DNA is similar to the mRNA sequence . The only difference is that the base thymine is replaced by the base uracil in mRNA. This mRNA sequence is complimentary to the anti sense DNA whose polarity is 3'-5'.