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T4噬菌体属于()

单选题
2021-12-29 02:58
A、A、螺旋对称
B、B、立方体对称
C、C、复合对称
D、D、都不是
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正确答案
C

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翻译:With Average or With Particular Average(WA or WPA)()
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原核生物主要有两种类型的 DNA连接酶:E.coliDNA连接酶和 T4DNA 连接酶。基因工程中使用的主要是 T4DNA连接酶,它是从 T4 噬菌体感染的 E.coli 中分离的种单链多肽酶,分子量为——』Oa,由 T4 噬菌体基因——编码。E.coli DNA连接是由大肠杆菌基因一编码,也是一条多肽链的单体,分子量为()kDa。这两DNA 连接酶有两个重要的差异:第一是它们在催化反应中所用的能量来源不同,TDNA连接酶用(),而 E.coli DNA连接酶则用()作为能源。第是它们催化平末端连接的能力不同,在正常情况下只有T4DNA连接酶能够连接平末端E.coliDNA连接酶则不能。即使是调整反应条件,E.coli DNA连接酶催化平末端连接效率也只有 T4 DNA连接酶的()。
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T4 噬菌体属于
噬菌体属于()
E.coli T4 噬菌体的典型外形是:
关于噬菌体生物学特性叙述错误的是()。
噬菌体感染宿主菌具有高度特异性,是一种专性细胞内寄生的真核细胞型微生物。( )
噬菌体属于().
T4噬菌体属于()
关于噬菌体生物学特性叙述错误的是()
T4噬菌体属于()
噬菌体感染宿主菌具有高度特异性,是一种专性细胞内寄生的真核细胞型微生物.()
噬菌体是感染细菌,真菌,放线菌或螺旋体等微生物的病毒.()
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