Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 13.3, Problem 4CYL
Summary Introduction

To summarize: The steps by which the information in a DNA sequence directs the synthesis of a protein.

Introduction: The process in which the nucleotide sequences of a gene are transcribed into messenger ribonucleic acid (mRNA) sequences that code for proteins is termed as protein synthesis.

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Which statement is false: A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the length and amino acid sequence of its peptide B) After the rpocess of transcription is complete, the mRNA that is produced will continue being tranlsated by ribosomes for the rest of the cells life. mRNA never breaks down C) A ribosome will bind to an mRNA and will translate the sequence by reading one codon at a time and adding one amino acid to the peptide chain. It will stop the translation once it encounters a stop codon  D) The gene for a protein provides the information on the legth of the peptide, along w the amino acid sequence so the protein can be synthesized by a ribosome  E) Once mRNA has left the nucleus, ribosomes will bind to it and will follow the instructions in its sequence to make the new protien
Describe the various post-transcriptional and post-translational modifications that occur during the transition from pre-mRNA to mature protein.
Define both transcription and translation. In addition, describe the role(s) of each of the following in the processes of gene expression and protein synthesis:  DNA, mRNA, tRNA, rRNA, ribosome(s), RNA polymerase, codon, anticodon, amino acid(s) and polypeptide(s). Be detailed in your answer.
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