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About Science Prof Online PowerPoint Resources

About Science Prof Online PowerPoint Resources.

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About Science Prof Online PowerPoint Resources

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  1. About Science Prof Online PowerPoint Resources • Science Prof Online (SPO) is a free science education website that provides fully-developed Virtual Science Classrooms, science-related PowerPoints, articles and images. The site is designed to be a helpful resource for students, educators, and anyone interested in learning about science. • The SPO Virtual Classrooms offer many educational resources, including practice test questions, review questions, lecture PowerPoints, video tutorials, sample assignments and course syllabi. New materials are continually being developed, so check back frequently, or follow us on Facebook (Science Prof Online) or Twitter (ScienceProfSPO) for updates. • Many SPO PowerPoints are available in a variety of formats, such as fully editable PowerPoint files, as well as uneditable versions in smaller file sizes, such as PowerPoint Shows and Portable Document Format (.pdf), for ease of printing. • Images used on this resource, and on the SPO website are, wherever possible, credited and linked to their source. Any words underlined and appearing in blue are links that can be clicked on for more information. PowerPoints must be viewed in slide show mode to use the hyperlinks directly. • Several helpful links to fun and interactive learning tools are included throughout the PPT and on the Smart Links slide, near the end of each presentation. You must be in slide show mode to utilize hyperlinks and animations. • This digital resource is licensed under Creative Commons Attribution-ShareAlike 3.0: • http://creativecommons.org/licenses/by-sa/3.0/ Tami Port, MS Creator of Science Prof Online Chief Executive Nerd Science Prof Online Online Education Resources, LLC info@scienceprofonline.com Alicia Cepaitis, MS Chief Creative Nerd Science Prof Online Online Education Resources, LLC alicia@scienceprofonline.com From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Compound microscope objectives, T. Port

  2. Molecular Genetics Transcription & Translation Image: Transcription, National Human Genome Research Institute From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  3. Genetics Terminology • ________ - Complete complement of an organism’s DNA. • Cellular DNA is organized in _____________. • ______ have specific places on chromosomes. • Q: What does the term expressed have to do with today’s lecture? Image: Chromosome & gene, Graham Colm, National Human Genome Research Institute From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  4. Nucleic Acids: DNA Structure From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: DNA Detail Diagram: Madprime; DNA Molecule, Biology Corner

  5. Nucleic Acids – RNA Structure RNA is typically a single-stranded molecule. Purine Bases(double ring) Adenine & Guanine Pyrimidine Bases(single ring) Cytosine & _______ From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: RNA, Biology Corner

  6. Nucleic Acid Structure See SPO Class Notes article on Nucleotides & Nucleic Acids. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Comparison of DNA & RNA, Wiki Commons

  7. Nucleic Acid Function Transcription Image: Transcription, National Human Genome Research Institute. From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  8. Replication & Transcription MAKING DNA = ______________ Making a copy of the genetic material. Think “duplication.” • MAKING RNA= ___________ • Transferring the genetic code information (DNA) into RNA. • Think of a medical transcriptionist copying the physicians words into another format. Image: Replication Diagram: Madprime, Wiki; Transcription, National Human Genome Research Institute From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  9. Transcription Process by which a DNA sequence is copied to produce a complementary RNA. In other words, it is the transfer of genetic information from DNA into RNA. Like replication, but making RNA. Beginning of the process that ultimately leads to the translation of the genetic code (via mRNA) into a protein. Image: Transcription, National Human Genome Research Institute. From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  10. Types of RNA Genetic information copied from DNA is transferred to 3 types of RNA: __________ RNA: mRNA Copy of information in DNA that is brought to the ribosome and translated into protein by tRNA & rRNA. __________ RNA: rRNA Most of the RNA in cells is associated with structures known as ribosomes, the protein factories of the cells. It is the site of translation where genetic information brought by mRNA is translated into actual proteins. ___________ RNA: tRNA Brings the amino acid to the ribosome that mRNA coded for. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Images: Blueprint, clipart; Factory, Andreas Praefcke; Truck, PRA.

  11. Nucleic Acid Function Translation From the Virtual Cell Biology Classroom on ScienceProfOnline.com Image: Peptide Synthesis Diagram: Boumphreyfr, Wiki

  12. Replication, Transcription, Translation MAKING DNA Making a copy of the genetic material = Replication When you think “replication” think “duplication” Where does replication occur in prokaryotes? Eukaryotes? MAKING RNA Transferring genetic code (DNA) to RNA = Transcription Think of a medical transcriptionist copying the physicians words into another format. Where does transcription occur in prokaryotes? Eukaryotes? MAKING PROTEINS Making proteins = ______________. Think of how translation relates to languages. The translation of biology translates DNA information into proteins. Images: Replication Diagram: Madprime; Peptide Synthesis Diagram: Boumphreyfr, Wiki From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  13. Translation & The ________ _______ Anti-codon • _____________ (which contain rRNA) make proteins from the messages encoded in mRNA. • The genetic instructions for a polypeptide chain are ‘written’ in the DNA as a series of 3-nucleotide ‘words.’ • ______ on mRNA • ___________ on tRNA • ‘U’ (uracil) replaces ‘T’ in RNA • This is the genetic code. • Q: Where does translation occur in prokaryotes? • Q:Eukaryotes? Codon Click herefor animation of ribosome building a protein. Image: Codon-Anticodon pairing, Yikrazuul, Wiki; Peptide Synthesis Diagram: Boumphreyfr, Wiki; Ribosome translating protein, Xvazquez. From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  14. Overview Eukaryotic Cell ______________ Synthesis of RNA under the direction of DNA (mRNA). ______________ Actual synthesis of a polypeptide (protein) under the direction of mRNA. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Diagram: Transcription & Translation, NIH

  15. Overview See SPO Class Notes article on DNA Function: Transcription & Translation.

  16. Overview

  17. Smart Links Confused? Here are links to fun resources that further explain genetic transcription & translation: • Molecular Genetics: Transcription & Translation Main Page on the Virtual Cell Biology Classroom ofScience Prof Online. • “That Spells DNA” song by Jonathan Coulton. • DNA Transcriptionstep-through animation by John Kyrk. • Transcribe & Translate a Gene, from University of Utah. • DNA Transcription and Protein Assembly animated movie by RedAndBrownPaperBag. • Genetic by Sonic Youth. • Transcription and Translation animated movie from PBS production “DNA: The Secret of Life. • “The Protein Synthesis Song” by MrsPurpleMonster18. (You must be in PPT slideshow view to click on links.) From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  18. See the ScienceProfOnline Virtual Cell Molecular Genetics: DNA Transcription & Translation Lecture for a printable Word .doc of this assignment. In-class Assignment • At the end of some lectures, I will give you some type of in-class assignment or homework to evaluate your understanding of today’s topic. • This assignment will always be open-book. • Today, if assigned you will be completing an activity on the topic of DNA Transcription & Translation. From the Virtual Cell Biology Classroom on ScienceProfOnline.com

  19. Are you feeling blinded by science?Do yourself a favor. Use the…Virtual Cell Biology Classroom (VCBC)!The VCBC is full of resources to help you succeed, including: practice test questions review questions study guides and learning objectives PowerPoints on other topics Access the Virtual Cell Biology Classroom (VCBC) on the Science Prof Online website www.ScienceProfOnline.com Images: Blinded With Science album, Thomas Dolby; Endomembrane system, Mariana Ruiz, Wiki

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