PPT-TRANSCRIPTION AHL Topic 7.3

IB Biology Miss Werba 2 J WERBA IB BIOLOGY AHL TOPIC 7 NUCLEIC ACIDS AND PROTEINS THINGS TO COVER Direction of transcription Sense and antisense strands of DNA Prokaryotic transcription . Tim . Johnstone. BIOL1220. Spring 2010. Transcription Factor. a protein that binds to specific DNA . sequences to modulate the transcription of DNA to mRNA. The transcription factor TATA binding protein (blue) bound to DNA (red). Image by David S. . Andrey Grigoriev. Director, Center for Computational and Integrative Biology. . Rutgers University. 2. What are we going to do?. Observe effects of fundamental processes. Estimate their relative contribution. DNA. RNA. PROTEIN. RNA and Transcription. RNA. R. ibo. n. ucleic . A. cid. another type of nucleic acid similar to DNA found in cells. also a polymer made of nucleotides. takes information from the nucleus to the rest of the cell. Zhang . Junqiu. Paper . presentation. Nature 2004, 428:868-871. Introduction. We want to build a quorum-sensing system which can control cell density at a constant amount autonomously.. Mechanism similar to natural circuit (Streptococcus . Co-chair of the IDPF Advanced/Hybrid Layouts . WG. I18N sub-group lead of the IDPF EPUB . WG. Traitor of the XML Schema WG and . a co-inventor . of RELAX NG. Then member of the W3C XML WG. Web and Electronic books/magazines: . C483 Spring 2013. 1. RNA Polymerase. Polymerizes RNA in a 3’. 5’ direction.. Has 3’5’ . exonuclease. activity. Has 5’3’ . exonuclease. activity. Catalyzes a reaction driven by pyrophosphate hydrolysis. C483 Spring 2013. 1. Which . of the following is true about . transcription regulation? . A) A repressor protein activates transcription of a negatively regulated gene. . B) A positively regulated gene can be transcribed only in the absence of active repressor. . Learning Objectives. Learn what a ‘transcription factor’ is.. Learn how oestrogen affects gene transcription.. Learn what siRNA is and how it affects gene expression.. Recap of 15.1. That the cells in our bodies are highly . i. n Eukaryotes. Lecture #2. 1/23/17. References. . A few of the many insights from RNA polymerase structures. Cramer, P. (2002) . Multisubunit. RNA polymerases. . Curr. . Opin. . Struct. . Biol. Essential idea:. The Doppler effect describes the phenomenon of wavelength/frequency shift when relative motion occurs.. Nature of science:. Technology: Although originally based on physical observations of the pitch of fast moving sources of sound, the Doppler effect has an important role in many different areas such as evidence for the expansion of the universe and generating images used in weather reports and in medicine. . Structure. Central Dogma. Template Strand. Coding Strand. RNA Functions. RNA Building Blocks. Structure. Eukaryotic Process. RNA Polymerase. Subunits (Prokaryotes). α (2). β. β’. ω. σ. Transcription. Zhang . Junqiu. Paper . presentation. Nature 2004, 428:868-871. Introduction. We want to build a quorum-sensing system which can control cell density at a constant amount autonomously.. Mechanism similar to natural circuit (Streptococcus . . Dr. Shumaila Asim. Lecture # 2. 1. RNA Synthesis . (Transcription). . Introduction. First step in gene expression . RNA is involved in the transfer of genetic information stored in DNA to proteins . Professional medical transcription services provided by SpectraScribe offer a streamlined solution for researchers seeking to extract meaningful insights from various research methodologies.