What is the contour length of DNA?
The contour length is equal to the number of monomers in the chain times the distance per monomer (0.338 nm/bp for B-form DNA). The persistence length characterizes the bending stiffness of the polymer and depends on the molecule’s local elastic behavior.
What components are needed for DNA?
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
How do you find the contour length of a polymer?
To get the chain contour length, divide MW of the polymer by the MW of the monomer unit and multiply by the length of the monomer unit.
What is the difference between contour length and extension?
The contour length of a polymer chain (a big molecule consisting of many similar smaller molecules) is its length at maximum physically possible extension. Contour length is equal to the product of the number of segments of polymer molecule(n) and its length(l).
What is end-to-end distance?
displacement length- the distance between one end of the polymer chain and the other for a coiled polymer. contour length- the distance between one end of the polymer chain and the other when the polymer is stretched out.
What are the 5 components of DNA?
(The Double Helix) DNA is made up of six smaller molecules — a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).
What are the components of DNA and RNA?
Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell ‘s activities, while RNA converts that code into proteins to carry out cellular functions.
Why is Z DNA left-handed?
Z-DNA is a left-handed helical form of DNA in which the double helix winds to the left in a zigzag pattern. DNA containing alternating purine and pyrimidine repeat tracts have the potential to adopt this non-B structure in vivo under physiological conditions, particularly in actively transcribed regions of the genome.
What is a polyethylene chain?
Polyethylene is probably the polymer you see most in daily life. For such a versatile material, it has a very simple structure, the simplest of all commercial polymers. A molecule of polyethylene is nothing more than a long chain of carbon atoms, with two hydrogen atoms attached to each carbon atom.
What is contour length of polymer chain?
Contour length is a term used in molecular physics. The contour length of a polymer chain (a big molecule consisting of many similar smaller molecules) is its length at maximum physically possible extension. Contour length is equal to the product of the number of segments of polymer molecule(n) and its length(l).