國七自然科學七下-2-1
Quiz
•
Biology
•
7th Grade
•
Practice Problem
•
Hard
葉東茂 葉東茂
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根據孟德爾的遺傳法則,當成對的兩個遺傳因子是不同形式時,下列敘述何者正確?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
豌豆種子的顏色由一對遺傳因子所控制,黃色為顯性Y),綠色為隱性y)。現將兩株黃色種子的豌豆進行交配,如果所得的子代中,種子顏色為黃色的有290株,綠色的有98株,那麼親代豌豆的遺傳因子組合應為下列何者?
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
天竺鼠控制毛色的遺傳因子有黑色和棕色兩種,已知黑毛為顯性。若一對黑色的天竺鼠親代生了六隻小天竺鼠,其中一隻為白毛,試問此對天竺鼠親代的遺傳因子組合應為何?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
桃子的果實表面光滑是由顯性遺傳因子所決定,表面有毛則是由隱性遺傳因子所決定。如果將純種有毛桃子的雌蕊與純種有毛桃子的花粉,以人為方式授粉,則該雌蕊授粉後的種子所發育成的果實應為如何?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
假設某種植物具有高莖與矮莖兩種性狀,但還不知道決定這兩種性狀遺傳因子的顯隱性,下列何種試驗的結果可以判斷出兩種性狀的顯隱性?
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
孟德爾在做紫花和白花豌豆的遺傳實驗時,要先去除白花的花藥。請推想此一動作的用意為何?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
關於性狀的的表現,下列敘述何者錯誤?
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