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(1)等位基因:基因组特定位点基因的不同形式(如:核苷酸序列不同)(2)α螺旋:常见于蛋白质的二级结构。由于允许最大程度的形成氢键,因而这种结构特别稳定。螺旋一周约3.5个氨基酸残基。(3)选择性剪接:同一基因产生不同蛋白质的过程。大多数人类基因由编码DNA序列(外显子)和非编
(1) Alleles: Different forms of genomic loci (eg different nucleotide sequences) (2) Alpha helix: Common to protein secondary structure. This structure is particularly stable due to the maximum possible hydrogen bond formation. About 3.5 amino acid residues a week. (3) Alternative splicing: the same gene produces different proteins. Most human genes consist of coding DNA sequences (exons) and non-coding