dna and rna replication ppt

DNA polymerase, which is the major replication enzyme, needs a primer at which it can add the first nucleotide. 2. has uracil instead of thymine 3. has ribose instead of deoxyribose. ñRb²st¤ä9Ò3CS³$Dd5e&6r¢cÓã4T%E¥ÅåF'Â£Uf¶Æw)Ã´VvG8¦æ7gµW !1AQðaq¡±"2ÁÑá²3ñBr¢â#4¤ä5Rb£$decãD´%ECstUÒS³6T&ÿÚ. Replication of RNA: If RNA viruses enter the host cells, they undergo multiplication by replicating their RNA. Fig. ��ࡱ� > �� n�O l�/e).�b��ƚ��PNG DNA pol I has 3 activities: polymerase, 3’-->5’ exonuclease & 5’-->3’ exonuclease. Usually double stranded. This strand of mRNA is EDITED before leaving the nucleus & carrying the code into the cytoplasm 20.12 in Weaver Another way to see that DNA replication is Bi-directional -- Cleave replicating SV40 viral DNA with a restriction enzyme that cuts it once. In the first step the single stranded parental RNA (+ strand), undergoes replication to form a double stranded parental replicating form (+—). Unwinding of DNA The interaction of proteins with ori defines the start site of replication and provides a short region of ssDNA essential for initiation of synthesis of the nascent DNA strand. DNA needs to be copied when an organism reproduces and when a cell reproduces. RNA polymerase adds RNA nucleotides complimentary to the DNA strand 3. mRNA building is complete when the RNA polymerase reaches a Termination (stop) site on the DNA 4. DNA REPLICATION Figure 4.2: DNA replication. Genetics - DNA Overview: word Answers Ch. TRANSCRIPTION 2nd: information in RNA is used to make a specific protein TRANSLATION Structure of RNA RNA molecules are chains of nucleotides. Structure Of DNA & RNA By Himanshu Dev VMMC & SJH 2. View chapt08_ DNA and RNA.ppt from BIO 200 at Lebanese American University. DNA stands for deoxyribonucleic acid, while RNA is ribonucleic acid.Although DNA and RNA both carry genetic information, there are quite a few differences between them. DNA replication begins at specific sites called origins of replication. found in chromosomes, mitochondria and chloroplasts. Be sure to include the following structures: Label 3’ and 5’ sides of DNA. Pol III structure --> Model for DNA complex DNA replication is semi-conservative. In other words, it is the transfer of genetic information from DNA into RNA. Chapter 8 Lecture Outline See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without PowerPoint Presentation Last modified by: Administrator Created Date: 1/1/1601 12:00:00 AM ... DNA Replication B. Transcription - RNA is made from DNA. Why is DNA replication “semi-conservative”? Another enzyme called DNA Primase codes for a small RNA primer, which facilitates the activity of DNA polymerase. DNA Mutation Notes and Ppt. Fully animated powerpoint of the structure of DNA and replication. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Leading Strand. ... DNA Polymerase DNA Polymerase catalyze the synthesis of a new strand of DNA They require an RNA primer with a free 3'-OH group They use deoxyribonucleoside-5-triphosphate precursors. RNA … Carries the genetic information Usually RNA is single … RNA Transcription: process of creating RNA from DNA 3. Two new DNA molecules are created- each have one parent strand and one new strand- … It is … RNA is similar to DNA except: 1. has on strand instead of two strands. The DNA Processes Power Point covers DNA replication and protein synthesis: DNA transcription and translation. Enzymology of DNA replication: implications for mechanism 1. Like replication, but making RNA. DNA 3. Process of DNA Replication B. DNA replication can occur only in one direction (but remember, these two strands are antiparallel). A summary of each process follows the full length explanations. mRNA has the job of taking the message from the DNA to the nucleus to the ribosomes. From the Virtual Cell Biology Classroom on ScienceProfOnline.com Transcription Process by which a DNA sequence is copied to produce a complementary RNA. DNA structure beginning with the basics. Structure of DNA: DNA is a polymer of deoxyribonucleotides (or simply deoxynucleotides). And so you might remember that DNA is deoxyribonucleic acid, so the sugar backbone in RNA is a very similar molecule, well now it's got its oxy, it's not deoxyribonucleic acid, it's ribonucleic acid. DNA is extended by adding a free nucleotide triphosphate to the 3′ end of the chain. The R, let me make it clear where the RNA come from, the R is right over there, then you have the nucleic, that's the n, and then it's a, acid. -flow of information from DNA to RNA to protein-DNA uses itself as a template to make more DNA = replication-use DNA to make RNA = transcription RNA leave the nucleus and interacts with other structures to make proteins = translation 1. The DNA molecule produces 2 IDENTICAL new complementary strands following the rules of base pairing: A-T, G-C Each strand of the original DNA serves as a template for the new strand See p. 298 DNA Replication Semiconservative Model: 1. Origin of Rep. 19 Replication Fork Origin of Rep. 21 What Really Happens É. DNA and Replication * copyright cmassengale * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * DNA Replication DNA polymerase can only add nucleotides to the 3’ end of the DNA This causes the NEW strand to be built in a 5’ to 3’ direction RNA Primer DNA Polymerase Nucleotide 5’ 5’ 3’ Direction of Replication copyright cmassengale * Remember HOW the Carbons Are Numbered! DNA, RNA, DNA Replication, Protein Synthesis and Mutations Review Game! 2 Viral Replication: Basic Concepts • Replication cycle produces-Functional RNA’s and proteins-Genomic RNA or DNA and structural proteins• 100’s-1,000’s new particles produced by each cycle-Referred to as burst size-Many are defective-End of ‘eclipse’ phase• Replication may be cytolytic or non-cytolytic Steps in Viral Replication: Attachment Cwk and Hwk 10/11: ; Complete the DNA Structure coloring, cutting, and assembly of the polymer . DNA replication must be much more accurate than that. Topoisomerase. Single-stranded DNA-binding proteins (SSBs) stabilize this complex. With a whiteboard marker, draw and make labels to show how DNA replication occurs. Start studying Chapter 13 Test: DNA replication and structures powerpoint notes. 2 ¥Primase and the RNA P rimer ¥Replication Elongation: ¥DNA polIII ¥Must have 3Õ to add to ¥Replication is Finished: ¥DNA polI remove s primer ¥Fills gap using 3Õends ¥DNA ligase connects frags ¥Uses 5Õ ends! IHDR � � h瀹 PLTE #*&57! DNA Deoxyribonucleic acid DNA - a polymer of deoxyribonucleotides. DNA polymerase enzymes are specialized for different functions. = <7./.3;G.D>;@> XH _ kWzd6OM. Unit 3. Regardless of organism, replication origins are unique DNA segments with multiple short repeats, recognized by multimeric origin-binding proteins, and usually contain an A-T rich stretch. RNA = ribonucleic acid. Introduction to RNA Gene expression: turning genes into specific traits, done by RNA. Title: DNA Replication Author: Robert and Marsha Goodman Last modified by: Bow School District Created Date: 4/13/2010 2:54:35 PM Document presentation format – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 56612b-YmEyM Established a new model of the elongation complex including binding sites for DNA and interacting proteins. 12 Study Guide Questions to Review pdf Mending Mutations pdf DNA Fingerprinting pdf DNA - RNA Structure Standards word DNA Structure Review Questions word DNA Replication Standard word Transcription and Translation Standard word includes Practice Questions DNA Crossword pdf Central Dogma DNA, rna, rEPLICATION, AND PROTEIN SYNTHESIS Notes. DNA AND RNA 4.2. Students will be able to explain the difference between DNA replication an Fully Editable Teacher Edition. Helicase. DNA polymerase III. This is a comparison of the differences between DNA versus RNA, including … Lagging Strand. 2 DNA DNA is a polymer made of monomers called nucleotides . Similar to Fig. Hwk for 10/14: DNA Structure and Replication POGIL--Models 1 and 2 ONLY The mechanism has been found to be similar to the replication of single stranded DNA. Origin of replication The consensus sequence of oriC Structure of dna and rna 1. Once the DNA has been replicated, there is one problem. Usually DNA is double stranded structure (single stranded DNA also occurs). DNA polymerase I. RNA primase. DNA Replication, Transcription, and Translation - DNA Replication, Transcription, and Translation DNA versus RNA Double Stranded Single Stranded Adenine-Thymine Adenine-URACIL Cytosine-Guanine Cytosine ... | PowerPoint PPT presentation | free to view Detailed tutorial of DNA from basic units- sugars, phosphates and bases- then how nucleotides link to form chains, the double helix. DNA-replication-revised.ppt - DNA Replication Summary Enzymes and proteins involved Process of replication in eukaryotes and prokaryotes Other functions. 21.2 in Weaver 4 Replicon - DNA replicated from a single origin Eukaryotes have many replication origins. All important enzymes and nucleotides are covered. DNA Helicase allows for processive unwinding of DNA. DNA Replication DNA must be copied. were to be copied sequentially by 10,000 secretaries, one copying the output of another, the results would contain quite a lot of gibberish by the time the task was completed. The usual replication machinery provides no way to complete the 5 ends, so repeated rounds of replication produce shorter DNA molecules. It acts as the genetic material in most of the organisms. And have double-helix structure. DNA Replication: process of creating a new DNA molecule 2. RNA polymerase binds to the promoter site (TATA box) (start) on the DNA 2. 1st step: copy part of the DNA sequence into RNA (Ribonucleic Acid). The RNA nucleotides are eventually replaced by DNA nucleotides when the DNA polymerase runs into them. Turn to a Partner List all the similarities and differences with DNA and RNA RNA Structure RNA differs from DNA in 3 ways: RNA is a single strand RNA has the sugar ribose RNA has the nitrogen base uracil instead of thymine. NEW edition is interactive. Translation - Proteins are made from the message on the RNA DNA nucleotides have three parts: Sugar called “deoxyribose” Phosphate group Nitrogenous base 3 The enzyme DNA primase combines a short fragment of RNA (primer) with the complementary constituents of the parent DNA. Think of a medical transcriptionist copying the physicians words into another format. oriC: origin of replication in E. coli: OriC 245 bp (3 13-nt and dnaA binding sites) in 4.8 m bp genome. 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