Molecular Cloning and Expression Analysis of a Hexokinase Gene MdHXK1 in Apple Molecular Cloning and Expression Analysis of a Hexokinase Gene MdHXK1 in Apple Cloning and analysis of the partial cDNA sequence of Taiwan snakehead(Channa maculata) uncoupling protein 2 Gene Advance on molecular biology of isoprenoids non-mevalonate pathway