PPT-Chapter 3: DNA Replication

Models of DNA replication MeselsonStahl Experiment DNA synthesis and elongation DNA polymerases Origin and initiation of DNA replication Prokaryoteeukaryote models circularlinear chromosomes. SC.L.16.3 . Describe . the basic process. of . DNA replication . and how it relates . to the . transmission . and . conservation. of . the genetic information. DNA and Its structure. DNA (deoxyribonucleic acid) is a large organic. WHAT YOU WILL LEARN. -process of DNA making copies . -role of enzymes in copying DNA. -leading and lagging strands in DNA replication. READING Q. ’. s . 1-LIST:. -the 3 phases of semi-conservative replication. 20.1 part 2. DNA replication. Earlier on in this unit we learned about mitosis or cell division.. In order for mitosis to occur and chromosomes to duplicate themselves, the DNA must copy itself exactly.. DNA Structure. The discovery of the structure. Francis Crick and James Watson. The deoxyribonucleic acid (DNA) molecule is the genetic blueprint for each cell and ultimately the blueprint that determines every characteristic of a living organism. The DNA molecule was discovered in 1951 by Francis Crick, James Watson, and Maurice Wilkins using X-ray diffraction. . Objectives:. 1. Summarize the roles of the different enzymes involved in replication of DNA.. 2. Explain how the leading and lagging strands are replicated differently . Semiconservative. Replication. The function of DNA in the cells is to. preserve genetic information.. transfer genetic information to new cells as the strands of DNA are copied.. DNA Replication. In . DNA replication. ,. the strands in the original or parent DNA molecule separate to allow the synthesis of complementary DNA strands.. Dr. Kevin Ahern. Structure. Structure. Structure. One Strand of DNA. Structure. Introduction. Structure. Introduction. DNA Structure. DNA Forms. Semi-Conservative Replication. Discontinuous. Replication. BIO…. LIFE….. THINK ABOUT THIS: . What do we do in our lifetime?. What are the major stages of our life?. What are the Major stages of physical development in our lives?. What would it look like. By. Dr. R. C. . Nath. ; Associate Professor. Department of Zoology. Govt. Degree College, DMR. .. Structure of a DNA molecule. `. It . has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material. 9.1 DNA Replication is Semiconservative. DNA Replication is Semiconservative. DNA Replication is Semiconservative. Chapter 9: DNA Replication . 9.2 DNA Replication in Prokaryotes. Prokaryotic DNA is circular. . Understanding DNA structure and replication is a prerequisite for understanding/using the principal tools of molecular biology . R. R. 0. R0. R0. 0. R0. R0. R. 0. R. RR. R0. 0. R0. 00. DNA: Structure & Replication. Directions: Front of card write term. On back write definition and draw picture . Chromosomes. Thread-like structure made of coiled DNA. Gene. Segment of DNA that codes for a specific trait. Nucleotide. . REPLICATION – GENERAL PRINCIPLES. START. Must be ready . Must know where to start . FINISH. Must all finish . Must ensure that each piece of DNA is replicated only once . Therefore must know where to finish . preserve genetic information.. transfer genetic information to new cells as the strands of DNA are copied.. DNA Replication. In . DNA replication. ,. the strands in the original or parent DNA molecule separate to allow the synthesis of complementary DNA strands..