what are the similarities between dna polymerase and rna polymerase?
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DNA plymerase:replicate whole DNA chromosome - synthesize daughter strands from the parental strands. RNA polymerase:transcribe messenger RNA from DNA strand. DNA plymerase and RNA polymerase -both adds one nucleotide at a time to the 3' end of strand and proceed the synthesis of strand from5' to 3' direction .
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RNA polymerase is an enzyme that catalyses the synthesis of RNA from DNA. ... RNA pol 2 resides in nucleoplasm and synthesises mRNA, snRNA and micro RNAs. RNA pol 3 is also an nucleoplasmic enzyme but it synthesis a variety of small RNAs including tRNA precursors and 5s rRNA.
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DNA polymerase I is a single polypeptide chain with 928 amino acids and molecular weight of 109 kDa. ... This exonuclease activity is called the proofreading or editing function of DNA polymerase I. Pol I also has a unique 5′ to 3′ exonuclease activity that is required for its DNA repair function.
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The two enzymes synthesize the DNA in the 5'-3' direction. DNA polymerase III synthesizes DNA on leading strand in a continuous manner, while DNA polymerase I have 5'-3' exonuclease activity which helps it in DNA repair, in multiple primer removals on lagging strand.
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Differences Between DNA and RNA Structurally, DNA and RNA are nearly identical. ... RNA has a ribose sugar instead of a deoxyribose sugar like DNA. RNA nucleotides have a uracil base instead of thymine.
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Which of these is a difference between a DNA and an RNA molecule? DNA contains nitrogenous bases, whereas RNA contains phosphate groups. DNA contains five-carbon sugars, whereas RNA contains six-carbon sugars. DNA is a polymer composed of nucleotides, whereas RNA is a polymer composed of nucleic acids.
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Like DNA, RNA is made up of nucleotides. ... There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
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The enzyme RNA polymerase binds to the template strand of DNA at the beginning of the sequence to be copied. Transcription can be explained easily in 4 or 5 simple steps, each moving like a wave along the DNA. RNA polymerase unwinds/"unzips" the DNA by breaking the hydrogen bonds between complementary nucleotides.
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All of the RNA in a cell is made by DNA transcription, a process that has certain similarities to the process of DNA replication discussed in Chapter 5. ... One of the two strands of the DNA double helix then acts as a template for the synthesis of an RNA molecule.
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Transcription and DNA replication both involve making copies of the DNA in a cell. Transcription copies the DNA into RNA, while replication makes another copy of DNA. ... Although DNA and RNA have some chemical similarities, each molecule performs different functions in living organisms.
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RNA is somewhat similar to DNA; they both are nucleic acids of nitrogen-containing bases joined by sugar-phosphate backbone. ... DNA has Thymine, where as RNA has Uracil. RNA nucleotides include sugar ribose, rather than the Deoxyribose that is part of DNA.
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The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA. ... RNA polymerase synthesizes an RNA strand complementary to a template DNA strand.
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Primary functions of DNA polymerases. DNA polymerases are a group of polymerases that catalyze the synthesis of polydeoxyribonucleotides from mono-deoxyribonucleoside triphosphates (dNTPs), performing the most fundamental functions in vivo of DNA replication, repair, and, in some cases, cell differentiation.
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All living organisms have DNA polymerases. Some, like the ones pictured here, are quite simple: one enzyme does it all. The ones in our own cells are more complex, composed of separate proteins that unwind the helix, build an RNA primer, and build the new strand.
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RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5' to 3' direction. It moves forward along the template strand in the 3' to 5' direction, opening the DNA double helix as it goes.
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DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, which are the building blocks of DNA. The enzymes play an essential role in DNA replication, usually working in pairs to produce two matching DNA stranges from a single DNA molecule.
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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.