國九自然科學複習6

Quiz
•
Biology
•
9th Grade
•
Medium
葉東茂 葉東茂
Used 2+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Answer explanation
答案:(A)
解析:呈扁平狀,可層層相疊,避免外物進入,有保護功能
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Answer explanation
答案:(D)
解析:(A)紅眼aa×紅眼aa,也可生出下一代全紅眼aa (B)白眼aa×白眼aa,也可生出下一代全紅眼aa (C)紅眼aa×白眼Aa,也可生出下一代紅眼:白眼為1:1 (D)紅眼Aa×紅眼Aa,可生出1/4aa白眼下一代
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Answer explanation
答案:(D)
解析:(D)若表兄妹其中一人(Aa)有隱性帶病基因,但不致病。因表兄妹基因相似度高,所以另一人極可能也是Aa 基因型。因此表兄妹結婚Aa×Aa,有生出1/4aa致病的下一代
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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