Kategorie C - Liegt zur Lizenzierung ohne Wasserzeichen in folgendem Format vor: 720x576.
Die Einbettung mit Wasserzeichen ist kostenlos.
English: Category C -
full version without watermark 720x576 (check terms and conditions at www.teledesign.de) The version with watermark is for free to embed -
Description: First the DNA is heated in the test tube so that the two strands of the double helix are physically separated. A subsequent cooling leads to attaching of the primers to the complementary sequences -- that is to the left and right of the STRs. As a next step the temperature is raised to 74°C which activates the poymerase. Its task is to add nucleotide after nucleotide to the primer according to the template DNA. Then the mixture is heated again in order to separate the newly developed double strands. The original template has been doubled now to four chains. After another recooling the primers again attach to all four of the DNA templates. The polymerase starts working again and reheating will reseparate the double strands. The primers reattach and the polymerase restarts synthesizing the region of the STR. As this procedure works as a chain reaction the technique is called PCR, "polymerase chain reaction".
Zwar endlich mal eine Animation auf deutsch, aber der Inhalt ist so grob, dass man viel falsch verstehen kann, wenn man sich mit dem Thema nicht schon vorher auskannte.
bisimo01 10 months ago 3