
翰林國中自然1下ch2-1遺傳、染色體與基因
Authored by 翰林出版國中自然 翰林出版國中自然
Biology
7th Grade
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
孟德爾觀察某一高莖豌豆植株自花授粉後,產生的子代中有的是高莖有的是矮莖,你認為這一高莖豌豆植株是否為純品系?其遺傳因子應該如何表示?
是,TT
是,Tt
否,TT
否,Tt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
同種生物的不同個體之間,因為「遺傳差異」使性狀表現不同,下列哪一種變化具有「遺傳差異」?
毛毛蟲變蝴蝶
男孩青春期後長出鬍鬚
同班同學中有高有矮
牛背鷺在生殖季與非生殖季有不同羽毛顏色
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在孟德爾的豌豆實驗中,進行人工授粉的步驟,會先摘除花藥,其原因為下列哪一選項?
先將花粉摘除,其主要是要行無性生殖
因為花粉會弄髒花瓣,所以摘除
避免花粉掉落至同一朵花的柱頭上,造成受精
花粉不具有基因,對遺傳實驗並沒有幫助,所以摘除
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是遺傳學上的性狀?
人的膚色
人的語言種類
水族館中經過染色的魚
動物的學習
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
若一朵花的胚珠是接受同朵花的花粉而受精,此種現象稱為什麼?
異花授粉
自花授粉
單性授粉
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據孟德爾的遺傳法則,當成對的兩個等位基因是不同的型式時,下列敘述何者正確?
基因會發生突變
所控制的性狀能表現出來的是顯性等位基因
所控制的性狀能表現出來的是隱性等位基因
兩個等位基因會彼此融合,所以無法表現
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪些生殖過程會有新的基因組合產生?
雌雄配子的結合
出芽生殖
營養器官繁殖
分裂生殖
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