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TASK 3 - DISCOVERING PHYLOGENY
AUTHORS
Jacinta Duncan – The Gene Technology Access Centre
DESCRIPTION OF TASK
Secondary students of all ages can discover the structure and location of DNA. They explore inheritance to learn that our genes contain codes for making proteins. They extract DNA and crack the genetic code for gene expression. Students then investigate how genetically similar organisms are through an exploration of molecular evolution, viewing sequence alignments and phylogenetic trees for the amylase gene.
Link to VCE Biology
Unit 3: Outcome 1
• The chemical nature of the cell:
The structure and function of DNA
Unit 4: Outcome 1
• Molecular genetics:
Genome, gene expression; genes as units of inheritance
Principle events in transcription and translation
Unit 4: Outcome 2
• Evidence for evolution: molecular evidence
• Evolutionary relationships: conservation of genes; genome phylogeny
BACKGROUND
No prior knowledge of DNA required. Teachers use the PowerPoint presentations as an instructional tool and insert breaks for student activities. Activities can be run over a few lessons and can be tailored to meet the needs of your class.
MATERIALS
PowerPoint Presentation - Delving into Cells, Chromosomes and Genes.” (Save this to the desktop prior to beginning task).
DNA extraction Protocol - teachers copy this for students
Student Worksheet - Code investigators - teachers copy this for students
Student worksheet for Power Point Presentation - teachers copy this for students
Website - http://www.gla.ac.uk/medicalgenetics/nhs/karyotypemovie.htm
Website - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=Structure
Website - http://www.pbs.org/wgbh/nova/odyssey/clips/movhum.html
Website - http://www.dnalc.org/
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