- Informationprocessingsystems--Fibredistributeddatainterface(FDDI)--Part1:Tokenringphysicallayerprotocol(PHY)Forinstance,toensurereliabilityofthewirelesslink,MACandPHYworktogethertodetermineifaclearpathexistsbeforetheystartatransmission."Processdatah...
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- 問題詳情: 植*酶能提高飼料中*的利用率,減少*隨畜禽糞便排出量,進而降低環境污染。科學家試圖將黑麴黴植*酶基因(phyA)轉入豬細胞中,以培育出轉植*酶基因豬。下圖爲實驗過程中基因表達載體的構建過程,圖中A、A1,B、B1表示引物,NheⅠ(G↓CTAGC),XhoⅠ(G↓TCGAG)爲限制酶。請問...
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