Helen Xiang Fan

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Tissue culture, a traditional technique broadly used for the genetic transformation and functional verification of target genes, induces epigenetic variations in transgenic acceptors of plants. This study compared the DNA methylation patterns during the callus formation of Brassica napus induced by different concentrations of 6-BA and 2,4-D through(More)
As members of the Dissertation Committee, we certify that we have read the disser-tation prepared by Helen Xiang Fan entitled Lens-coupled X-Ray Imaging Systems and recommend that it be accepted as fulfilling the dissertation requirement for the Degree of Doctor of Philosophy. Final approval and acceptance of this dissertation is contingent upon the(More)
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