Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. How the DNA nanoarchitecturing works?
DNA Nano architectures constructs that can be self-assembled from branched DNA molecules. Their components can be simple branched species or more complex structural motifs. Simple branched DNA junctions have been produced that comprise 3-12 double helices flanking a branch point. Species can be assembled or/and ligated into DNA stick polyhedra, where edges are DNA double helices and vertices correspond to branch points of junctions. The first such molecule was a DNA molecule with the connectivity of a cube. Otherpolyhedra produced to date contain a tetrahedron, an octahedron as well as a truncated octahedron. Branched junctions are somewhat floppy, so only branching and linking topologies of polyhedral are well defined unless all faces are triangles. Other individual objects which have been built are topological targets, like knots and Borromean rings. DNA is an ideal species to use as a topological building block since a half-turn of DNA is equivalent to a node, which is fundamental topological feature of a catenane or aknot. DNA doublecrossover (DX) molecule is another key element in DNA nanoarchitectures. This motif comprise two helices joined twice by strands that connect them, leading to parallel helix axes; connection points are separated typically by Two-dimensional DNA lattice. One and two double helical turns. Each of connection points is a four-arm junction, so motif can be explained as two four-arm junctions joined twice to eachother at adjacent arms. These are robust motifs, generally three to six double helical turns in length and their structures can be reliably predicted. This system can be extended, leading to molecules containing three or more helices joined laterally. Even though most often built to be roughly planar motifs, angles canbe varied between pairs of helices, using helicity of DNA, for example a six-helix cyclic motif has been reported that approximates a hexagonal tube (→DNA nanotubes). DX molecules and their relatives can be used as tiles to produce two-dimensional crystalline arrangements by self-assembly (→DNA self-assembly). An extra motif can be included in these tiles, visible when crystal is viewed in an atomic force microscope. Accompanying picture demonstrates how arrangements of two 16 × 4 nm tiles produce 32-nm stripes (top) or four tiles produce 64-nm stripes (bottom). Along with periodic arrangements, aperiodic patterns can also be generated algorithmically. Single-stranded bacteriophages have been used to produce greatly extended versions of parallel DNA motif, capable of yielding highly elaborate patterns, in a method known as DNA origami. This is done by using bacteriophage genome (several thousand nucleotides)as a template to which a large number of "staple strands" are added to fold genome into a specific shape, including holes in the middle; addition of strands containing extra domains enable the generation of further features. Smiley faces and a map of western hemisphere are instances of patterns generated by this method.
Q. Why we use Histamine in consciousness? Histamine is involved in controlling the level of consciousness during waking. The level of histamine diminishes during sleep and its
Explain the Maintenance Requirement of nutritional needs? This is defined as 'the amount of nutrient that is needed to replace the wear and tear of the tissues within the body
REMOVAL OF TESTIS - It is male hypogonadism. (1 ) BEFORE PUBERTY - Cestration before puberty results in permanent sterility. This condition is eunuchoidism & shows the
Pressure calculation made using the Bernoulli equation may be used in conjunction with pressure measurements made by other modalities to determine various intracardiac pressure.
Why should an athletes take Proteins? Proteins are basically taken for their ergogenic properties of enhancing endurance and increasing or maintaining muscle mass to improve st
Explain Adverse effects of Zidovudine It include anemia, neutropenia, nausea, vomiting, headache, fatigue, confusion, malaise, myopathy, hepatitis, and hyperpigmentation of or
Why do you think the energy requirements are different in situations? Well the requirement is dependent on the ways in which the body spends energy. For example in the first c
How does the plant cell wall react when it is placed under hypotonic medium? Ans) The plant cell wall (the covering of the cell outside to the cell membrane) is made of cellulos
Define Dietary Management during Surgery? Surgery increases the nutritional demands of the body and can lead to the elicitation of several nutritional deficiencies/imbalance. M
Q. Water has key participation in organic reactions. What are examples of two types of organic reactions in which water is respectively incorporated or liberated in the products of
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd