What is the polymerization of nucleotides?
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What is the polymerization of nucleotides?
The polymerization of nucleotides occurs in a condensation reaction in which phosphodiester bonds and H2O molecules are formed, as shown in Fig. 2c. The resulting structure resembles the backbone of an RNA molecule in which the nucleotides are found at a well defined distance of 3.4 Å, as shown in Fig.
What are the polymerization of nucleic acids?
Nucleotides are joined together similarly to other biological molecules, by a condensation reaction that releases a small, stable molecule.
How are nucleotides polymerized into nucleic acids?
Nucleotides polymerize by chemically linking a phosphate group at the 5′ position of one nucleotide to the hydroxyl group at the 3′ position of the next nucleotide. The linkage creates a phosphodiester bond, releasing a water molecule.
What is a polymer of nucleotides called?
The monomer units of DNA are nucleotides, and the polymer is known as a “polynucleotide.” Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group.
Which enzyme brings out the polymerization of nucleotides?
The first nucleotide polymerizing enzyme, DNA polymerase, was discovered in 1957. The free nucleotides that serve as substrates for this enzyme were found to be deoxyribonucleoside triphosphates, and their polymerization into DNA required a single-stranded DNA template.
What is the polymer of nucleic acids called?
Nucleotides. DNA and RNA are polymers (in the case of DNA, often very long polymers), and are made up of monomers known as nucleotides. When these monomers combine, the resulting chain is called a polynucleotide (poly- = “many”).
Which enzyme brings out the polymerization of nucleotides in new strand of DNA?
DNA polymerase
The first nucleotide polymerizing enzyme, DNA polymerase, was discovered in 1957. The free nucleotides that serve as substrates for this enzyme were found to be deoxyribonucleoside triphosphates, and their polymerization into DNA required a single-stranded DNA template.
What monomer is polymerize to DNA?
DNA consists of two long polymers (called strands) that run in opposite directions and form the regular geometry of the double helix. The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue.
Which enzyme brings out the polymerization of nucleotides in new strand of DNA Mcq?
DNA polymerase enzymes are required for the assembly of the daughter strands along each of the template DNA strands.
Which of the following enzymes can polymerize deoxyribonucleotides into DNA?
A DNA polymerase is an enzyme that assists in DNA replication. Such enzymes catalyze the polymerization of deoxyribonucleotides alongside a DNA strand, which they “read” and use as a template.
What is a nucleic polymer?
A nucleic acid is a polymeric macromolecule made up of repeated units of monomeric ‘nucleotides’ composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
What does DNA polymerase need during polymerization?
DNA polymerases can only add nucleotides to the 3′ end of an existing DNA strand. (They use the free -OH group found at the 3′ end as a “hook,” adding a nucleotide to this group in the polymerization reaction.)
Which of the given enzymes is capable of opening of DNA helix and polymerisation of nucleotides?
Solution: RNA polymerase facilitates opening of DNA helix during transcription.
What type of polymer is made up of many nucleotides?
DNA and RNA molecules are polymers made up of long chains of nucleotides.
Which of the following enzyme have the ability to polymerize Deoxyribonucleotide?
DNA polymerase is an enzyme that catalyses the polymerisation of deoxyribonucleotide.
What enzyme is responsible for adding nucleotides to a growing DNA chain during replication?
enzyme DNA polymerase
One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template.
How are deoxyribonucleotides synthesized?
Deoxyribonucleotides consist of a purine or a pyrimidine base bonded to deoxyribose, which in turn is bound to a phosphate group. They are synthesised by reduction of ribonucleoside diphosphates.
What is the name of the enzyme that catalyzes the polymerization of DNA?
The central enzyme involved is DNA polymerase, which catalyzes the joining of deoxyribonucleoside 5′-triphosphates (dNTPs) to form the growing DNA chain.
