The polynucleotide chain is helical.多核苷酸键是螺旋形的.In a globular protein, certain portions of the chain are coiled into helical segments.在球状蛋白中, 链的某些部分被盘成螺旋状.Two types of viral symmetry have been recognized, the cubical symm...
Two types of viral symmetry have been recognized, the cubical symmetry and helical symmetry.已经证实病毒有两种对称型, 即立体对称和螺旋对称.The polynucleotide chain is helical.多核苷酸键是螺旋形的.The high laevorotation of L - cystine depends on a speci...