Chapter 26, Problem 26.53AP

Interpretation Introduction

Interpretation:

A role of intron and exon term has to be defined.

Concept Introduction:

RNA synthesis: The process of RNA synthesis is Transcription. A small section of DNA unwinds, only one of the two strands act as template and the other strand as informational strand. The complementary bases are attached one by one by the action of RNA polymerase at template strand on moving down. The newly generated RNA is the exact copy of the informational strand, with the exception that a U replaces each T in the template DNA. The RNA synthesised carries genetic information and directs protein synthesis.

hnRNA : The mRNA from the nucleus contains both Introns and Exons is named as hnRNA (heterogeneous nuclear RNA).