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The reaction is extremely powerful and under perfect conditions could amplify 1 DNA molecule to become 1.07 billion molecules in less than 2 hours.The PCR technique can be used to introduce restriction enzyme sites to ends of DNA molecules, or to mutate particular bases of DNA, the latter is a method referred to as site-directed mutagenesis.In molecular biology, procedures and technologies are continually being developed and older technologies abandoned.For example, before the advent of DNA gel electrophoresis (agarose or polyacrylamide), the size of DNA molecules was typically determined by rate sedimentation in sucrose gradients, a slow and labor-intensive technique requiring expensive instrumentation; prior to sucrose gradients, viscometry was used.It should be noted that not all medical procedures that introduce alterations to a patient's genetic makeup can be considered gene therapy.Bone marrow transplantation and organ transplants in general have been found to introduce foreign DNA into patients.

Asalnya memang telemovie, kemudian diminta untuk memanjangkannya sebanyak 13 episod, kemudian disuruh tukar ke tema Ramadhan dan kemudian telemovie kembali.Begitulah perjalanan penulisan dan idea telemovie ini.Idea asal telemovie ini adalah daripada sahabat saya S.It must at the same time inquire into genesis and function." Polymerase chain reaction is an extremely versatile technique for copying DNA.In brief, PCR allows a specific DNA sequence to be copied or modified in predetermined ways.

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