将光驱动的质子泵一噬盐菌菌紫质(baete riorhodapsin)与ATP合成酶置于同一脂质体中,在光照下可由ADP和磷酸产生ATP 。
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A.oldB.goodC.badD.best
A. old
B. good
C. bad
D. best
After studying in a medical college for five years, Jane ______ her job as a doctor in the
A. set out
B. took over
C. took up
D. set up
有丝分裂中期染色体的唯一染色质组分是()。
A. 常染色质
B. 异染色质
C. 活性染色质
D. 非活性染色质
在间期细胞核中用碱性染料染色,染色很深的为异染色质,染色较浅的为常染色质。
A. 正确
B. 错误