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【单选题】
下列哪个不属于逆转录酶的功能（）
A.
依赖RNA的DNA聚合酶活力
B.
核糖核酸酶H活力
C.
依赖DNA指导下的DNA酶聚合活力
D.
使RNA的碱基与五碳糖之间化学键断裂
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...
A.
Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
B.
Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
C.
Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
D.
Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
【单选题】关于反转录酶的叙述错误的是
A.
反转录酶能催化RNA指导的DNA的合成反应
B.
反转录酶能催化RNA的水解反应
C.
反转录酶能催化DNA指导的DNA的合成反应
D.
反转录酶具有3＇→5＇外切酶活性和校读功能
E.
可以利用反转录酶将mRNA反转录成cDNA用以获得目的基因