DNA Ioslation and Sequence Analysis of Dinosaur DNA from Cretaceous Dinosaur Egg in Xixia Henan,ChinaLI Yi AN Chengca iChinese Full Text
ZHu Yuxian ZHANG Yun LIu Yifei QU Lin YOu Lingtao LIANG Xiaowen Ll Xiaohua QU Lijia ZHOU Zengquan CHEN Zhangliang(ColItege of Life Sciences,Peking University.Beijing.100871)
Abstract: DNA was extracted from 70～80 million year old dinosaur egg excavat-ed from Cretaceous belt formation in Xixia Henan.China.The DNA samples from both outer shell and inner floccule contents were used as templates in polymerase chain reactions （PCR ）with a specific primer and hexamers. With these two primers a l50 bp DNA fragment has been amplified , cloned and sequenced.Deduced amino acid sequence of this dinosaur DNA has been compared with known protein se-quences in EMBL Bank. The results showed that it has significant homology with Xenopus laevis epithelia precursor-Ep-cadherin（40.6%）and brain-cadherin（37.5%）、bovine placental cadherin（34.4%）and human placental cadherin（36;4%）,respectively.
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- DOI：
10.13209/j.0479-8023.1995.018
- Series：
- Subject：
- Classification Code：
Q911.27
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