• 2022-07-02 问题

    下列群体中哪一个处于遗传平衡状态() A: 16%AA:48%Aa:36%aa B: 49%AA:21%Aa:9%aa C: 4%AA:16%Aa:16%aa D: 20%AA:40%Aa:40%aa

    下列群体中哪一个处于遗传平衡状态() A: 16%AA:48%Aa:36%aa B: 49%AA:21%Aa:9%aa C: 4%AA:16%Aa:16%aa D: 20%AA:40%Aa:40%aa

  • 2022-06-07 问题

    Which of the following items belongs to balanced population? A: AA 49%; Aa 42%; aa9% B: AA 49%; Aa 26%; aa25% C: AA 25%; Aa 39%; aa36% D: AA 9%; Aa 66%; aa25% E: AA 16% ;Aa 36% ; aa48%

    Which of the following items belongs to balanced population? A: AA 49%; Aa 42%; aa9% B: AA 49%; Aa 26%; aa25% C: AA 25%; Aa 39%; aa36% D: AA 9%; Aa 66%; aa25% E: AA 16% ;Aa 36% ; aa48%

  • 2022-06-07 问题

    ​由基因频率和基因型频率推测,以下哪个群体不属于平衡群体?‌ A: AA(20%); Aa(60%); aa(20%) B: AA(81%); Aa(18%); aa(1%) C: AA(64%); Aa(32%); aa(4%) D: AA(49%); Aa(42%); aa(9%)

    ​由基因频率和基因型频率推测,以下哪个群体不属于平衡群体?‌ A: AA(20%); Aa(60%); aa(20%) B: AA(81%); Aa(18%); aa(1%) C: AA(64%); Aa(32%); aa(4%) D: AA(49%); Aa(42%); aa(9%)

  • 2022-06-05 问题

    由基因频率和基因型频率推测,以下哪个群体不属于平衡群体? A: AA(64%); Aa(32%); aa(4%) B: AA(49%); Aa(42%); aa(9%) C: AA(81%); Aa(18%); aa(1%) D: AA(20%); Aa(60%); aa(20%)

    由基因频率和基因型频率推测,以下哪个群体不属于平衡群体? A: AA(64%); Aa(32%); aa(4%) B: AA(49%); Aa(42%); aa(9%) C: AA(81%); Aa(18%); aa(1%) D: AA(20%); Aa(60%); aa(20%)

  • 2022-06-18 问题

    如图是一个白化病家族的遗传系谱图,请写出Ⅰ1、Ⅰ3的基因型和Ⅲ1为白化病患者的概率() A: AA、Aa和1/16 B: Aa、Aa和1/9 C: Aa、AA和1/4 D: Aa、Aa和1/64

    如图是一个白化病家族的遗传系谱图,请写出Ⅰ1、Ⅰ3的基因型和Ⅲ1为白化病患者的概率() A: AA、Aa和1/16 B: Aa、Aa和1/9 C: Aa、AA和1/4 D: Aa、Aa和1/64

  • 2021-04-14 问题

    冒泡排序是经典的循环结构处理案例,下面是一个冒泡排程序: 请补充下划线的内容j : Dim I, J, AA(9) As Short Dim Temp As Short For I = 0 To 9 AA(I) = InputBox("请输入第" & I & "数", "输入窗口") Next For I = 1 To 8 For J = I + 1 To 9 If AA(I) > AA(J) Then Temp = AA(I) _______ '交换1 AA(J) = Temp End If Next Next ....

    冒泡排序是经典的循环结构处理案例,下面是一个冒泡排程序: 请补充下划线的内容j : Dim I, J, AA(9) As Short Dim Temp As Short For I = 0 To 9 AA(I) = InputBox("请输入第" & I & "数", "输入窗口") Next For I = 1 To 8 For J = I + 1 To 9 If AA(I) > AA(J) Then Temp = AA(I) _______ '交换1 AA(J) = Temp End If Next Next ....

  • 2022-06-19 问题

    In 1803 the United States purchased Louisiana from _____.

    In 1803 the United States purchased Louisiana from _____.

  • 2022-06-19 问题

    In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.

    In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.

  • 2022-06-05 问题

    下列处于遗传平衡的群体是( )。 A: AA:0.20; Aa:0.60; aa:0.20 B: AA:0.25; Aa:0.50; aa:0.25 C: AA:0.20; Aa:0.50; aa:0.30 D: AA:0.50; Aa:0; aa:0.50 E: AA:0.70; Aa:0.30; aa:0

    下列处于遗传平衡的群体是( )。 A: AA:0.20; Aa:0.60; aa:0.20 B: AA:0.25; Aa:0.50; aa:0.25 C: AA:0.20; Aa:0.50; aa:0.30 D: AA:0.50; Aa:0; aa:0.50 E: AA:0.70; Aa:0.30; aa:0

  • 2022-07-29 问题

    下列杂交组合中,会出现表型分离的是( ) A: Aa×aa B: AA×Aa C: AA×aa D: Aa×Aa

    下列杂交组合中,会出现表型分离的是( ) A: Aa×aa B: AA×Aa C: AA×aa D: Aa×Aa

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