[单选题]真核细胞核糖体的沉降系数及其大小亚基的沉降系数分别是()A . 80S,60S,40SB . 70S,50S,30SC . 80S,50S,30SD . 70S,40S,30S
[单选题,A2型题,A1/A2型题] 沉降系数是指单位离心力作用下溶质颗粒沉降的速度。沉降系数用Svedberg常数表示(S单位),IS单位等于()A . 10×10-13SB . 1×10-13SC . 10×10-14SD . 10×10-15SE . 10×10-16S
[填空题] 真核细胞核糖体的沉降系数为(),原核细胞核糖体的沉降系数为()。
[填空题] DNA分子的沉降系数决定于()、()。
[问答题] 沉降系数S的意义是什么?
[填空题] 真核细胞核糖体的沉降系数为(),原核细胞核糖体的沉降系数为70S。
[单选题]真核细胞核糖体的沉降系数是A.50S B.60S C.70S D.80S
[单选题]细菌核糖体的分子沉降系数为A . 30SB . 40SC . 60SD . 70SE . 80S
[单选题]真核细胞核糖体的沉降系数为A.50SB.60SC.70SD.80SE.90S
[单选题]细菌核糖体的分子沉降系数为A.30SB.40SC.60SD.70SE.80S