Journal
JOURNAL OF NUCLEIC ACIDS
Volume 2010, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.4061/2010/421803
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Funding
- Natural Science Foundation of Henan Province, China [511042300, 624410041]
- Science & Technology Innovation Talents in University of Henan Province [2008HASTIT026]
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DNA molecular weight standard control, also called DNA marker (ladder), has been widely used in the experiments of molecular biology. In the paper, we report a method by which DNA marker was prepared based on multiple PCR technique. 1001000 bp DNA fragments were amplified using the primers designed according to the 6631 similar to 7630 position of lambda DNA. Target DNA fragments were amplified using Touchdown PCR combined with hot start PCR, respectively, followed extracted by phenol/chloroform, precipitated with ethanol and mixed thoroughly. The results showed that the 100-1000 bp DNA fragments were successfully obtained in one PCR reaction, the bands of prepared DNA marker were clear, the size was right and could be used as control in the molecular biology experiment. This method could save time and be more inexpensive, rapid, simple when compared with the current DNA Ladder prepared means.
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