2-1 性狀的遺傳單選
Quiz
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
東茂 葉
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
人類的多基因遺傳如身高、體重、膚色等,表現型在族群中的分布曲線多為下列何者?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
決定豌豆種子性狀的等位基因:圓形、皺皮、黃色、綠色。今將皺皮綠色豌豆植株與下列何種基因型之豌豆植株授粉,可產生全為皺皮黃色的豌豆?
Answer explanation
(A)rryy × rryy→子代100% rryy,皺皮綠色 (B)rryy × rrYY→子代100% rrYy,皺皮黃色 (C)rryy × RRyy→子代100% Rryy,圓形綠色 (D)rryy × RRYY→子代100% RrYy,圓形黃色
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某人患有白化症(皮膚缺少黑色素),而他的父母膚色都正常,下列相關敘述何者正確?
Answer explanation
Aa × Aa→某人aa(白化症) (D)有二個白化症等位基因
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一對小鼠交配生下子代25隻,其中12隻白色,另13隻灰色。若控制小鼠毛色為灰色的等位基因G為顯性,則這對小鼠最可能的基因型組合是?
Answer explanation
子代表現型約為1:1,所以親代應為Gg × gg
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
在A、B、O血型中,哪兩種婚配,子代的表現型有最多種可能?
Answer explanation
(A)4種(IAIB、IAi、IBi、ii) (B)2種(IAi、IBi) (C)3種(A型的IAIA或IAi、IAIB、IBi) (D)2種(IBi或ii)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知西瓜果實的重量是由四對等位基因所控制,則下列哪一基因型之重量與其他不同?
Answer explanation
西瓜重量為多基因遺傳 (A)三個顯性等位基因 (B)四個顯性等位基因 (C)四個顯性等位基因 (D)四個顯性等位基因
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖為某家族血型譜系圖,□表示男性,○表示女性,圖示中的文字表示血型,下列敘述何者錯誤?
Answer explanation
因丙為B型,故甲必有IB因子,可能為B型或AB型,基因型可能為IBIB、IBi和IAIB。庚可能為B型、A型或AB型,基因型可能為IBIB、IBi、IAIB或IAi,絕不可能為O型
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