最可能形成Z-DNA的序列是：
A: 5'-ATATATATATATATATATAT-3' 3'-TATATATATATATATATATA-5'
B: 5'-AAAAAAAAAAAAAAAAAAAA-3' 3'-TTTTTTTTTTTTTTTTTTTTT-5'
C: 5'-GCGCGCGCGCGCCGCGCGCG-3' 3'-CGCGCGCGCGCGCGCGCGcG-5'
D: 5'GGGGGGGGGGGGGGGGGGGG-3' 3'-ccccccccccccccccoccccc-5'
A: 5'-ATATATATATATATATATAT-3' 3'-TATATATATATATATATATA-5'
B: 5'-AAAAAAAAAAAAAAAAAAAA-3' 3'-TTTTTTTTTTTTTTTTTTTTT-5'
C: 5'-GCGCGCGCGCGCCGCGCGCG-3' 3'-CGCGCGCGCGCGCGCGCGcG-5'
D: 5'GGGGGGGGGGGGGGGGGGGG-3' 3'-ccccccccccccccccoccccc-5'
举一反三
- 最可能形成z-DNA的序列是( )。 A: 5’-ATATATATATATATATATAT-3’ 3"一TATATATATATATATATATA-5’ B: 5’-AAAAAAAAAAAAAAAAAAAA-3’ 3"-TTTTTTTTTTTTTTTTTTTT-5’ C: 5’-GCGCG(2GCGCGCCGCGCGCG一3’ 3"-CGCGCGCGCGCGCGCGCGCG-5’ D: 5’-GGGGGGGGGGGGGGGGGGGG一3’ 3"-CCCCCCCCCCCCCCCCCCCCC一5’
- DNA复制时,新链的合成方向是 A: 3'→5' B: 3'→5'或5'→3' C: 5'→3'→3'→5' D: 5'→3' E: 有时3'→5',有时→5'→3'
- DNA复制时，新合成序列是5′—CGATG—3′，其模板是： A: 5′—TAGCA—3′ B: 5′—CATCG—3′ C: 5′—CAUCG—3′ D: 5′—GCTAC—3′ E: 5′—TGTAC—3′
- 下列各项中，哪一项不是Kirsch边缘检测中构建的模板（） A: [5 5 5；-3 0 -3；-3 -3 -3] B: [-3 5 5；-3 0 5；-3 -3 -3] C: [5 5 5；-3 -3 0；-3 -3 -3] D: [-3 -3 -3；-3 0 -3；5 5 5]
- 以5’……CGAGAT……3’作为模板，DNA复制后合成的子链序列是（ ） A: 3’……AUCUCG……5’ B: 5’……ATCTCG……3’ C: 5’……GCUCUA……3’ D: 5’……GCTCTA……3’ E: 5’……ATCTGC……3’