107國中自然1下_2-2

Quiz
•
Other
•
7th - 9th Grade
•
Hard

Yu Liu
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於DNA,下列敘述何者錯誤?
成分是核糖碳酸
是染色體的主要組成物質
位在細胞核內
是一種遺傳物質
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用複式顯微鏡觀察已染色的洋蔥根尖切片標本,如附圖,則圖中箭頭所指構造的主要成分應為何?
葡萄糖
脂質
礦物質
去氧核醣核酸
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於同源染色體,下列何者正確?
人類卵細胞內的23條染色體為同源染色體
同源染色體上的等位基因形式應都相同
人類體細胞內有23套同源染色體
同源染色體通常是兩兩成對,且大小、形狀均相似
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對2n生物而言,若某一性狀是由一組成對的等位基因所控制,則其等位基因組合應以幾個字母表示?
1個
2個
3個
4個
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將洋蔥根尖細胞中的基因、染色體及細胞核作一比較,此三者大小關係為何?
基因>染色體>細胞核
細胞核>染色體>基因
細胞核>基因>染色體
染色體>細胞核>基因
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
孝天最近看電視新聞,常聽到DNA這個字眼,爸爸告訴他:「DNA是細胞內的遺傳物質。」試問DNA是位於細胞的下列哪一構造上?
細胞壁
細胞膜
染色體
液胞
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果將人類體細胞內的染色體對數假設為甲對,基因數目假設為乙個,則甲和乙間有什麼樣的關係?
甲>乙
甲=乙
甲<乙
不一定,視體細胞種類才能決定
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