A) intron, exon
B) ribosomes binding site
C) poly A tail, Gppp Cap
D) okazaki piece.
Correct Answer: D
Solution :
: Messenger RNA (m-RNA) is produced by DNA template in the nucleus and moves out into the cytoplasm with the coded information from DNA to produce specific proteins. Transcription of the gene starts at the cap site. Poly A tail help in maintaining the stability of mRNA. The pre-mRNA formed having exons and introns is then processed by elimination of the introns. In DNA synthesis, two new strands i.e., leading and lagging strands are formed. Leading strand is the new strand which is synthesized continuously whereas logging strand is that synthesized in short fragments called as okazaki fragments.
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