七下自然2-1解開遺傳的奧秘
Quiz
•
Biology
•
7th Grade
•
Practice Problem
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Medium
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
影響豌豆種子顏色的遺傳因子有兩種型式,一種為顯性,使種子呈現黃色,以Y表示;另一種為隱性,使種子呈現綠色,以y表示。則遺傳因子組合YY、Yy、yy性狀的特徵表現分別為何?
黃色、綠色、綠色
黃色、綠色、黃色
綠色、黃色、黃色
黃色、黃色、綠色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據遺傳法則,當成對的兩個遺傳因子為不同的型式時,下列敘述何者正確?
只有顯性遺傳因子控制的性狀特徵能表現
只有隱性遺傳因子控制的性狀特徵能表現
因兩個遺傳因子彼此融合,所以都無法表現
個體同時表現出兩種型式遺傳因子所控制的性狀特徵
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一對親代果蠅所生下的子代果蠅中,承旭挑選出甲、乙、丙三隻果蠅,分別再與長翅果蠅(Aa)交配,所生下第二子代的數量統計表如表所示。請問下列何者是親代果蠅的遺傳因子組合型式?
AA × AA
AA × Aa
Aa × Aa
Aa × aa
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一生物個體控制某性狀的遺傳因子組合為Aa,下列敘述哪些正確?
甲.這對遺傳因子所控制的性狀表現,對該生物絕對有利;
乙.此生物表現出「A」所控制的性狀特徵;
丙.「a」所控制的性狀特徵有可能會在其子代上表現;
丁.該個體會產生含「A」或「a」的配子。
甲乙丙丁
乙丙丁
丙丁
甲丙
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者屬於人類的性狀?
頭髮長短
近視度數
眼球顏色
母語種類
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
T:豌豆高莖遺傳因子、t:豌豆矮莖遺傳因子,若二株高莖豌豆授粉,子代全為高莖,則下列敘述何者正確?
高莖親代遺傳因子的組合可能是TT×Tt
高莖子代遺傳因子的組合只能是Tt
親代皆只能產生一種配子
親代遺傳因子的組合一定是Tt×Tt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
假設雙眼皮的遺傳因子(A)為顯性,單眼皮的遺傳因子(a)為隱性,請問雙眼皮的哈利(其母親為單眼皮)與也是雙眼皮的未婚妻結婚後,會不會生出單眼皮的小孩?
可能,哈利是Aa、未婚妻是AA
可能,哈利是Aa、未婚妻是Aa
不可能,哈利是AA、未婚妻是AA
不可能,哈利是AA、未婚妻是Aa
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