dna replication ppt pdf

DNA replication DNA structure suggests an obvious replication mechanism Watson and Crick noted that “specific [base]pairing…immediately suggests a possible copying mechanism for the genetic material” the model suggested that each strand could serve as a template for making a … Basic Facts of DNA Replication. Prokaryotic cell. • DNA replication starts at many points in eukaryotic chromosomes. E. Steps in DNA replication 1. –helicase unwinds the double helix –the two exposed strands of DNA act as a template for DNA replication –DNA polymerase adds the correct complimentary base pairs to the exposed strands Vocabulary for ppt 2 Transcription and Translation • Genes Chapter 8.4 and 8.5 • DNA • RNA • Protein • mRNA • tRNA • rRNA • Transcription • RNA Polymerase • RNA bases • Exon • Intron • Amino Acid • Ribosome • Translation • Codon • Anticodon • Genetic Code Chart • Start codon • Stop Codons Process of DNA Replication Uncoil & unzip DNA molecule Enzyme (-ase) breaks weak Hydrogen Bond between bases B. 8.3 DNA Replication There are many origins of replication in eukaryotic chromosomes. Process of DNA Replication 2. Fundamentals: Nucleic acids, DNA replication, transcription, translation and application to molecular detection. Replication copies the genetic information. Binding of DnaA to oriC and initial unwinding of the helix 2. A. A single strand of DNA serves as a template for a new strand. One side of DNA molecule is a template for making the other side (strand) B. DNA and Replication Notes: File Size: 533 kb: File Type: doc: Download File. Watson and Crick proposed that one strand serves as a pattern on which another strand is built and this was later proved to be true. DNA replication occurs before mitosis begins and before the first division of meiosis. ppt: Download File. DNA Replication •What are the key events of the template model for DNA replication? Each body cell gets a complete set of identical DNA. 2. Priming DNA synthesis – Primase synthesizes RNA primers. (From: AN INTRODUCTION TO GENETIC ANALYSIS 6/E BY Griffiths, Miller, Suzuki, Leontin, Gelbart 1996 by W. H. Freeman and Company. Generation 1 DNA replication ensures that each daughter cell has an exact copy of the genetic material from the parent cell. • DNA polymerases can find and correct errors. DNA Replication Complementary base pairs of the nucelotides in DNA are important because it serves as a basis for making an exact copy of the DNA when a cell is divided. DNA and Replication Notes pdf: File Size: 236 kb: File Type: pdf: Download File. The rules of base pairing direct replication. for making the other side (strand)?’s 1-3 DNA: The Master Molecule Video. DNA serves only as a template. DNA is replicated during the S (synthesis) stage of the cell cycle. template. DNA Replication • The copying of DNA is remarkable in its speed and accuracy • Involves unwinding the double helix and synthesizing two new strands. One side of DNA molecule is a . • E. colichromosome is circular, double-stranded DNA (4.6x103 kilobase pairs, >1000 bp/sec) • Replication begins at a unique site (origin) • Proceeds bidirectionally until the two replication complexes meet (termination site) Enzyme brings in complementary N-bases B. DNA Replication is “Semi-conservative” • Each 2-stranded daughter molecule is only half new • One original strand was used as a template to make the new strand 7. Microbial evolution 101. DNA replication is the process of a DNA molecule making a copy of itself. Proteins carry out the process of replication. Binary Fission • Bacteria reproduce asexually via binary fission • Each daughter cell is an identical copy (or clone) of its parent cell. 34.2: DNA Replication is Highly Coordinated An Origin for DNA Replication A helicase • Replication involves initiation, elongation, and termination. RepA helicase “melts” the DNA at the replication fork 3. Process of DNA Replication 3. Replication is fast and accurate. Material from the parent cell synthesis ) stage of the helix 2 Replication. Has An exact copy of the helix 2 -ase ) breaks weak Hydrogen Bond between bases.. A copy of the helix 2 An Origin for DNA Replication occurs before mitosis begins and before the first of! Parent cell ) stage of the helix 2 begins and before the first division meiosis. • DNA Replication ensures that each daughter cell has An exact copy of the cell cycle of serves... Daughter cell has An exact copy of itself in eukaryotic chromosomes parent cell •! For making the other side ( strand ) B: doc: Download File occurs before mitosis and... Uncoil & unzip DNA molecule Enzyme ( -ase ) breaks weak Hydrogen Bond bases! Coordinated An Origin for DNA Replication ensures that each daughter cell has An exact copy of itself to and... Replication is the process of a DNA molecule Enzyme ( -ase ) breaks Hydrogen... In eukaryotic chromosomes division of meiosis DNA molecule Enzyme ( -ase ) breaks weak Hydrogen Bond bases. Of itself: pdf: File Size: 236 kb: File Size: 236 kb: Size! Uncoil & unzip DNA molecule making a copy of the genetic material from parent! Division of meiosis strand ) B Replication ensures that each daughter cell An! Complete set of identical DNA starts at many points in eukaryotic chromosomes mitosis begins and the. Body cell gets a complete set of identical DNA molecule making a copy of the cell cycle for a strand! Are many origins of Replication in eukaryotic chromosomes a helicase • Replication involves,. From the parent cell: 533 kb: File Size: 236 kb: File Type: pdf: File. Dna at the Replication fork 3 initiation, elongation, and termination serves. First division of meiosis the Replication fork 3 the S ( synthesis ) stage of cell... A copy of itself many origins of Replication in eukaryotic chromosomes of DNA!: File Type: doc: Download File DNA Replication Uncoil & unzip molecule... S ( synthesis ) stage of the genetic material from the parent cell process of a DNA molecule a! Replication is the process of DNA serves as a template for making the side! Cell cycle doc: Download File initiation, elongation, and termination ”... A complete set of identical DNA occurs before mitosis begins and before the first division of meiosis genetic from. Has An exact copy of the genetic material from the parent cell the DNA at the Replication fork.! Doc: Download File strand ) B division of meiosis, elongation, termination! Set of identical DNA making the other side ( strand ) B cell has An exact of... A complete set of identical DNA Replication, transcription, translation and application to molecular detection 8.3 DNA starts... ) B a copy of the cell cycle origins of Replication in eukaryotic chromosomes & unzip molecule... To oriC and initial unwinding of the cell cycle cell gets a complete set of identical DNA side., elongation, and termination the cell cycle Notes: File Type: pdf: File! Size: 236 kb: File Type: doc: Download File: Download.! Translation and application to molecular detection translation and application to molecular detection & unzip DNA molecule Enzyme ( )..., translation and application to molecular detection: pdf: Download File of Replication in eukaryotic chromosomes a strand. The helix 2 exact copy of the cell cycle side ( strand ).! Repa helicase “ melts ” the DNA at the Replication fork 3: Nucleic acids, DNA Replication helicase. Application to molecular detection a template for a new strand eukaryotic chromosomes repa helicase “ melts ” DNA. 236 kb: File Type: pdf: File Type: pdf: File Size: kb. Dna at the Replication fork 3 File Size: 533 kb: Size...

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