Question

At a specific area of a chromosome, the sequence of nucleotides below is present where the chain opens to form a replication fork:3' C C T A G G C T G C A A T C C 5'An RNA primer is formed starting at the underlined T (T) of the template. Which of the following represents the primer sequence?A) 5' G C C T A G G 3'B) 3' G C C T A G G 5'C) 5' A C G T T A G G 3'D) 5' A C G U U A G G 3'E) 5' G C C U A G G 3'

Answer 1

Answer:

The correct answer is the D option 5' A C G U U A G G 3'

Explanation:

The chemical ending orientation of a single strand of nucleic acid into a single strand of DNA or RNA is the chemical convention of naming carbon atoms in the nucleotide sugar-ring,

It means that there will be a 5′-end (usually pronounced "five prime end" ), which frequently contains a phosphate group attached to the 5′ carbon of the ribose ring, and a 3′-end (usually pronounced "three prime end"), which typically is unmodified from the ribose -OH substituent.