DNA is a polymer made from four different monomers , called nucleotides . These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.
Why is DNA A polymer molecule?
DNA is a polymer due to the fact it contains multiple repeating units (monomers). These monomers are known as nucleotides. Multiple nucleotides join together by phosphodiester bonds to form the polymer that is DNA.
Is RNA A polymer?
RNA is a linear polymer of nucleotides linked by a ribose-phosphate backbone.
Is DNA an addition polymer?
The proteins we eat, and which we’re made of, are polymers made up of amino acids. And even our DNA is a polymer—it’s made of monomers called nucleotides.
What type of polymer is DNA?
DNA is a polymer. 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 of the following is not A polymer?
Glucose is a monomer and not a polymer as it is a single unit. DNA, Cellulose, Starch are prime example of natural polymers. The most abundant natural monomer is glucose, which is linked by glycosidic bonds into the polymers cellulose, starch, and glycogen.
What is DNA chemically?
DNA is a linear molecule composed of four types of smaller chemical molecules called nucleotide bases: adenine (A), cytosine (C), guanine (G), and thymine (T).
What is this polymer?
A polymer is any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, which are multiples of simpler chemical units called monomers. Polymers make up many of the materials in living organisms and are the basis of many minerals and man-made materials.
Is DNA A polymer of nucleotides?
RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
Does DNA have A ribose?
The five-carbon sugar in DNA is called deoxyribose, while in RNA, the sugar is ribose.
Does DNA contain ribose?
While DNA contains deoxyribose, RNA contains ribose, characterised by the presence of the 2′-hydroxyl group on the pentose ring (Figure 5). This hydroxyl group make RNA less stable than DNA because it is more susceptible to hydrolysis.
Is DNA A condensation polymer?
DNA (deoxyribonucleic acid) is an organic polymer made by the condensation polymerisation of repeating units (monomers) called nucleotides.
Is DNA A enzyme?
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.
Which is an example of A biological polymer?
Starch and cellulose are biological polymers which are made by plants. The monomers for both starch and cellulose are sugar molecules. Starch is used by plants as a way of storing energy as a complex carbohydrate . Cellulose is used to make the strong cell wall which gives plant cells (and therefore plants) strength.
Is DNA A conjugated polymer?
DNA–polymer conjugates can be categorized through their interaction, either covalent or noncovalent, and through the DNA structure, from ODNs through to nanostructures, such as DNA origami (Figure 5).
What is a DNA monomer?
The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T). The sugar and phosphate create a backbone down either side of the double helix.
Is DNA made of carbon?
A single basic unit or “building block” of DNA consists of a sugar , a phosphate group and a base. Sugars are rings of carbon and oxygen atoms. The sugar in DNA has 5 carbon atoms (labelled 1′ – 5′), and is called deoxy-ribose (hence the “Deoxy-ribo” in DNA).
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