Biology: How Life Works
Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 18.2, Problem 7SAQ
Summary Introduction

To describe:

The process through which gene expression can be influenced after mRNA is processed and leaves the nucleus.

Introduction:

Gene expression is used for the production of genetic products, through the genetic instruction stored in our DNA. The gene expression provides the cell the ability of self controlling its function. Gene expression mainly involves in transcription and translation of gene to control the mRNA and the protein synthesis rate. During transcription both the coding and non-coding regions of DNA are transcribed into mRNA. Non-coding regions (introns) are removed and mRNA is processed. The coding regions (exons) are spliced together and polyadenylation is done for the export of mRNA out of the nucleus. The mRNA is then used to synthesize proteins through the expression of different genes. Translation of mRNA into proteins illustrates another tier in gene expression.

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QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY