o’simlik to’qimalaridan dnk ni ajratib olish

1403960690_49687.doc o’simlik to’qimalaridan dnk ni ajratib olish. kerakli asbob va reaktivlar: chayqatgich apparat, sovitgichli tsentrifuga, ajratgich voronka, rn metr lpu-0,1, 100; 200 ml li o’lchov tsilindrlari, shlifli, qopqoqli kolba, pipetka, hovoncha, probirka, 370с li termostat, «a» eritma-tarkibida 0,1 m edta, 1m dodentsilsulfat (dds) bor, natriy xloridning 0,15 m eritmasi (rn=7,0), «b» eritma tarkibida 0,1 m edta, 2% dds bor, natriy xloridning 0,15 m eritmasi (rn=6,0), «v» eritma tarkibida 0,1 m edta, 5% dds bor, natriy xloridning 0,15 m eritmasi (rn=8,0), 96% li etanol, 78% li etanol, suvga to’yintirilgan fenol, fenol-xloroformning 1:1 nisbatdagi aralashmasi, nacl ning 0,15 m va 0,015 m eritmalari, papain (tarkibida 0,005 m edta bor 88 mkg/ml eritma, rn=6,5), tripsin (1 mkg/ml, ...

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