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DNA Mutations and Organism Impact

Explore the effects of DNA mutations on organisms, including the role of jumping genes, introns, and exons. Review gene production regulation, RNA editing, and protein formation.

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DNA Mutations and Organism Impact

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  1. Hand inW.S. How can a mutation in DNA affect an organismbefore the bell rings Review Chapter 10 Quiz 1 Review Regulating Gene Production Notes – Jumping genes Editing RNA Lab - Making Sense of Introns and Exons Prepare for Chapter 10 Test Video “Harvest of Fear” "I made it hard and difficult for kids because they don't get anything out of it if it's easy." Bob Knight To review how proteins are formed and learn about the central dogma of biology. Title: Biology 4/13/07 Class Topics Objectives: Thursday, January 2, 202010:47 AM

  2. Class Assignments What By When • Read 215-220 4/13/07 • W.S. How can a mutation in DNA… 4/13/07 • Making sense of introns and exons 4/13/07 • Chapter 10 Test 4/17/07 • Due this class period • Due next class period • Due in the future

  3. Grade Sheet 2A – p. 157 (5 pts.)

  4. From: http://www.accessexcellence.org/AB/GG/induction.html

  5. From: http://www.accessexcellence.org/AB/GG/rna_synth.html

  6. From: http://waynesword.palomar.edu/transpos.htm Barbara McClintock • Insertion • A length of DNA is inserted into a gene • Transposon • “Jumping genes” – like cut and paste on computer • Genes that can move from one location on a chromosome to another • It can inactivate a gene or cause mutations • Transposons are in all organisms • Brings together different combinations of genes • Evolutionarily important

  7. Intron and Exon Lab • Working in pairs • The older of the pair will do all evens and the younger will do all odds. • Hand in one sheet per group • Hand in the polypeptide phrase when complete and lab sheet • Return to your seat and prepare for exam next class period

  8. RNA vs DNA Genetic code Universal Codon Types of RNA mRNA nRNA tRNA rRNA Transcription Translation Gene Editing Introns Exons Gene expression lac operon Mutation Point frameshift Test Review

  9. Chapter 11Genetic Engineering • Genetic engineering • Manipulating genes for practical purposes • Recombinant DNA • DNA from two or more organisms • History • First used in 1973 • Common today • Insulin, agriculture products?????

  10. Harvest Of Fear • Video • 1A • 8 min. Ring Spot Virus – Dennis Gonsalves • 2A • 26 min. Are GMOs safe to eat • 3A • 25 min. Are GMOs safe to eat • 4A • 4B

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