Gene Expression Part 1: Reading Genes to Make Proteins
Date of this Version
Plant and Soil Sciences eLibrary (PASSeL) Lesson
Objectives and Overviews for Gene Expression Part 1
This lesson describes the steps involved in a cell as DNA sequence information is read to make RNA, and RNA is read to make proteins. A gene will control a trait in an organism only when the gene is expressed. This means the gene is read in the cell to make a protein that carries out a specific function. This lesson describes the basic steps in the gene expression process.
At the completion of this lesson you should be able to:
- Define the roles of DNA and proteins in cell development and metabolism
- Determine the amino acid sequence of a protein given the nucleotide sequence of a gene.
- Describe the roles that the promoter, coding region, and termination sequence of a gene play in gene expression.
- Recognize the differences between the structure of proteins, amino acids, genes and nucleotides.
- Draw the process of gene expression and include the following in your drawing. Gene, RNA polymerase, promoter, coding region, termination sequence, intron, cell, nucleus, cytoplasm, mRNA, tRNA, ribosome, anticodon, codon, amino acid, protein, peptide bond.
- Lesson home
- Objectives and Overviews for Gene Expression Part 1
- The Need for Gene Expression
- Expression of Acetolactate Synthase Enzyme
- Transcription: control from the promoter and termination sequence
- Translation, reading the code to make proteins
- Why a Triplet Code?
- The Reading Frame, Codons and Anticodons
- Getting Translation Started with the Start Codon
- Peptide Bond Formation and Protein Building
- The tRNAs are Recycled
- The End of Translation: stop codons looking for something they cannot find