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’
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’
C
举一反三
- 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'
- 其治疗应选用在DNA复制时,5’一ATCCATC一3’的碱基序列产生的互补碱基序列是() A: 5’一TAGGTAC一3’ B: 5’一UAGGUTC一3’ C: 5’一GATGGAT一3’ D: 3’一CATGGAT一5’ E: 以上都不对
- 婚前医学检查包括下列哪些疾病的检查在DNA复制时,5’一ATCCATC一3’的碱基序列产生的互补碱基序列是() A: 5’一TAGGTAC一3’ B: 5’一UAGGUTC一3’ C: 5’一GATGGAT一3’ D: 3’一CATGGAT一5’ E: 以上都不对
- 3..DNA复制时,以序列5’一TAGA一3’为模板将合成的互补结构是 A: 5’ -TCTA-3’ B: 5’ -ATCT-3’ C: 5’一 UCUA— 3’ D: 5'— GCGA— 3’ E: 3’一TCTA—5’
- 现有一DNA片段,它的顺序为3′……ATTCAG……5′,转录生成的RNA序列应是 A: 5′……GACUUA……3′ B: 5′……AUUCAG……3′ C: 5′……UAAGUC……3′ D: 5′……CTGAAT……3′ E: 5′……ATTCAG……3′
内容
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现有一DNA片段,它的顺序为3',……ATTCAG……5',转录生成的RNA序列应是 A: 5'……GACUUA'……3', B: 5'……AUUCAG……3' C: 5'……UAAGUC……3', D: 5'……CTGAAT……3',
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在转录期间,顺序5ˊ一TAGA一3ˊ的片段,将产生下列哪种互补结构在转录期间,顺序5ˊ一TAGA一3ˊ的片段,将产生下列哪种互补结构() A: 5ˊ一TCTA一3ˊ B: 5ˊ一ATCT一3ˊ C: 5ˊ一UCUA一3ˊ D: 5ˊ一GCGA一3ˊ E: 3ˊ一TCTA一5ˊ
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在相同的条件下,最可能形成Z-DNA的序列是( )。 A: 5'-ATATATATATATATATATAT-3' 3-TATATATATATATATA TATA-5' B: 5’-AAAAAAAAAAAAAAAAA-3' 3’-TTTTTTTTTTTTTTTTTTTT-5' C: 5'-GCGCGCGCGCGCGCGCGCGC-3' 3-CGCGCGCGCGCGCGCGCGCG-5' D: 5'-GGGGGGGGGGGGGGGGGGG-3' 3-CCCCCCCCCCCCCCCCCCCC-5' E: 5'-GTGTGTGTGTGTGTGTGTGT-3' 3-CACACACACACACACACACA-5'
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一落纱中,细纱断头分布的大致比例是() A: 5:2:3 B: 5:3:2 C: 3:2:5 D: 2:3:5
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现有一DNA片段顺序为3′…ATTCAG…5′模板链、5′…TAAGTC…3′编码链,生成的RNA序列为() A: 5′…GACUUA…3′ B: 5′…AUUCAG…3′ C: 5′…UAAGUC…3′ D: 5′…CTGAAT…3′