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DNA synthesis is the natural or artificial creation of deoxyribonucleic acid (DNA) molecules. DNA is a macromolecule made up of nucleotide units, which are linked by covalent bonds and hydrogen bonds, in a repeating structure. DNA synthesis occurs when these nucleotide units are joined to form DNA; this can occur artificially (in vitro) or ...
DNA computing is an emerging branch of unconventional computing which uses DNA, biochemistry, and molecular biology hardware, instead of the traditional electronic computing. Research and development in this area concerns theory, experiments, and applications of DNA computing. Although the field originally started with the demonstration of a ...
DNA exists in many possible conformations that include A-DNA, B-DNA, and Z-DNA forms, although only B-DNA and Z-DNA have been directly observed in functional organisms. [14] The conformation that DNA adopts depends on the hydration level, DNA sequence, the amount and direction of supercoiling, chemical modifications of the bases, the type and ...
DNA origami is the nanoscale folding of DNA to create arbitrary two- and three-dimensional shapes at the nanoscale. The specificity of the interactions between complementary base pairs make DNA a useful construction material, through design of its base sequences. [2] DNA is a well-understood material that is suitable for creating scaffolds that ...
Paper doll. Appearance. For other uses, see Paper doll (disambiguation). A girl playing with paper dolls. Paper dolls are figures cut out of paper or thin card, with separate clothes, also made of paper, that are usually held onto the dolls by paper folding tabs. [ 1 ] They may be a figure of a person, animal or inanimate object.
The dolls are meant to introduce "girls to remarkable women's stories to show them you can be anything," according to Mattel. L.A. district attorney reviews Menendez brothers case amid new evidence
The series was discontinued after only 5 dolls, but the dolls live on as their face and body sculpts are used for other Barbie dolls ever since. The Model Muse body in particular has become the new standard body for collector dolls in the Barbie line. Daria (2004–2005) was the Caucasian doll in this collection. Two versions of her were ...
The two base-pair complementary chains of the DNA molecule allow replication of the genetic instructions. The "specific pairing" is a key feature of the Watson and Crick model of DNA, the pairing of nucleotide subunits. [5] In DNA, the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. The A:T and C:G pairs ...