DNA REPLICATION: Before the lagging-strand DNA exits the replication factory, its RNA primers must be removed and the Okazaki fragments must be joined together to create a continuous DNA strand. The first step is the removal of the RNA primer. RNAse H, which recognizes RNA-DNA hybrid helices, degrades the RNA by hydrolyzing its phosphodiester ...
DNA replication_____ A. uses each strand of a DNA molecule as a template for the creation of a new strand B. occurs through the addition of nucleotides to the end of the DNA molecule C. begins when two DNA molecules join together to exchange segments D. results in the formation of four new DNA strands
DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5' terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3' terminal).
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1. A replication fork appears at replication origin 2. The anti-parallel parental strands separate 3. On the 5'- 3' strand, DNA pol will cause a continuous strand (leading strand) to be made. As the DNA opens up, the DNA pol can continue to synthesise the complementary strand
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Concept 2: DNA Double Helix. Practice (1 page) Review (2 pages) Concept 3: Semiconservative Model of DNA Replication. Practice (1 page) Review (2 pages) Concept 4: Biosynthesis of DNA. Practice (1 page) Review (1 page) Concept 5: Replicating Antiparallel DNA Strands. Practice (1 page) Review (1 page) Concept 6: Enzymes and Proteins in DNA ...
DNA polymerase attaches to an RNA primer and replicates DNA in a 5 prime to 3 prime direction When it reaches another RNA primer, it detaches and 'leapfrogs' to next primer following the helicase DNA polymerase I move along the replication for removing the RNA primers DNA ligase attaches the okazaki fragments into a continuous strand of DNA ...
It is the site of DNA Replication At this site there is a Replication Bubble that is formed The Replication Bubble has TWO(2) Replication forks Prokaryotes. only have 1 point of origin Eukaryotes can have many points of origin.
DNA replication is the process of producing two identical copies of DNA, in which each template for the synthesis of a new complementary daughter strand. The central enzyme involved is DNA polymerase, which catalyzes the joining of deoyribonucleoside 5'-triphosphates (dNTPs) to form the growing DNA chain.