To analyse the combining ability and heterosis between high-strength lines and transgenic Btbollworm-resistant lines in upland cotton, 5 high-strength lines wer
Systematic experiments about the antitumor effects of low-energy laser irradiation combined with the traditional antitumor medicine of cyclophosphamide were con
An about 1.40 Kb target gene fragment was yielded by PCR amplification with the plasmid pRB 129,which was identified by restriction enzyme digestion that the PC