what are the two functions of dna polymerase what is the significance of these functions?
318826
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from one original DNA molecule.
806486
DNA Polymerase I possesses a 3´→5´ exonuclease activity or "proofreading" function, which lowers the error rate during DNA replication, and also contains a 5´→3´ exonuclease activity, which enables the enzyme to replace nucleotides in the growing strand of DNA by nick translation.
888077
What are the 2 fundamental roles of DNA? It replicates (reproduces) itself before the cell divides, ensuring that the genetic information in the descendant cells is identical. It also provides the basic instructions for building every protein in the body. ... It carries out the orders for protein synthesis issued by DNA.
145890
DNA Polymerase synthesizes a DNA strand and used in DNA replication while RNA Polymerase is used during transcription to synthesize the MRNA strand. In contrast with the DNA polymerase, RNA polymerases do not necessarily require the so called primer to start the process and they actually have no proofreading systems.
318177
DNA polymerase adds nucleotides to the three prime (3')-end of a DNA strand, one nucleotide at a time. Every time a cell divides, DNA polymerases are required to duplicate the cell's DNA, so that a copy of the original DNA molecule can be passed to each daughter cell.
544307
DNA polymerase III holoenzyme is the enzyme primarily responsible for replicative DNA synthesis in E. coli. It carries out primer-initiated 5' to 3' polymerization of DNA on a single-stranded DNA template, as well as 3' to 5' exonucleolytic editing of mispaired nucleotides.
102299
The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code. To read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA.
237283
DNA polymerase II (also known as DNA Pol II or Pol II) is a prokaryotic DNA-Dependent DNA polymerase encoded by the PolB gene. DNA Polymerase II is an 89.9-kDa protein and is a member of the B family of DNA polymerases. ... The enzyme has 5′→3′ DNA synthesis capability as well as 3′→5′ exonuclease proofreading activity.
722000
DNA Polymerase I, Bacterial DNA polymerase I of eubacteria functions in vivo to synthesize short stretches of DNA during excision repair and to remove RNA primers and fill the gaps between Okazaki fragments in lagging strand replication.
996677
The main role of DNA in the cell is the long-term storage of information. ... The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code. To read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA.
65638
DNA Polymerase synthesizes a DNA strand and used in DNA replication while RNA Polymerase is used during transcription to synthesize the mRNA strand. In contrast with the DNA polymerase, RNA polymerases do not necessarily require the so called primer to start the process and they actually have no proofreading systems.
1237713
Terms in this set (47) The sole purpose of DNA replication is to generate identical DNA molecules, as they are the blueprint that makes life possible. There are reasons that there DNA replication goes through a slightly different process to repair damage.
1372240
DNA polymerase Vs RNA polymerase: ... The DNA is a double-stranded molecule, while the RNA is single-stranded- formed from the DNA during transcription. Based on that, another difference between both is that the DNA polymerase manufacture double-stranded DNA while the RNA polymerase manufacture a single-stranded RNA.
1392065
DNA replication is the action of DNA polymerases synthesizing a DNA strand complementary to the original template strand. ... In eukaryotes, the vast majority of DNA synthesis occurs during S phase of the cell cycle, and the entire genome must be unwound and duplicated to form two daughter copies.
610574
The main function of DNA polymerase is to synthesize DNA from deoxyribonucleotides, the building blocks of DNA. ... Primers consist of RNA or DNA bases (or both). In DNA replication, the first two bases are always RNA, and are synthesized by another enzyme called primase.
772667
In fact, different types of DNA polymerases have been found in a single organism, for example, three (DNA Pol I, II, and III) in E. coli or five (DNA Pol α, β, γ, δ, and ɛ) in higher eukaryotes, which are believed to perform a specialized in vivo function(s).
1206500
DNA polymerase (DNAP) is a type of enzyme that is responsible for forming new copies of DNA, in the form of nucleic acid molecules. Nucleic acids are polymers, which are large molecules made up of smaller, repeating units that are chemically connected to one another.