1-1細胞的分裂

Quiz
•
Biology
•
7th Grade
•
Medium
JOESPH HSU
Used 44+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有關雞的各部構造,其形成過程中,何者需經過減數分裂?
雞腿
雞冠
雞蛋
雞爪
Answer explanation
雞蛋的小白點是卵細胞,其形成過程中需經過減數分裂
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖是植物細胞的描繪圖。請依圖指出染色體位於哪一部分?
甲
乙
丙
丁
Answer explanation
甲—細胞膜、乙—液胞、丙—細胞核、丁—細胞質。染色體位於細胞核(丙)中
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖為某細胞核內的兩對染色體,請問丙的同源染色體為何者?
甲
乙
丙
丁
Answer explanation
同源染色體一條來自父親,另一條來自母親,大小及形狀相似。甲乙、丙丁為同源染色體
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人類細胞中的染色體通常兩兩成對且大小、形狀皆相似,一條來自父親,一條來自母親。請問這些成對的染色體稱為什麼?
複製染色體
非同源染色體
同源染色體
親代染色體
Answer explanation
同源染色體一條來自父親,另一條來自母親,大小及形狀相似。甲乙、丙丁為同源染色體
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關人體染色體的敘述,下列何者正確?
染色體由脂質及 DNA 所組成
染色體位於細胞核中
染色體平時呈短棒狀在分裂前呈細絲狀
染色體的數目可能隨時改變
Answer explanation
染色體由蛋白質及 DNA 所組成;
染色體為雙股螺旋構造;
只有細胞在進行分裂時,才會呈現粗短的條狀構造;平時是以絲狀構造存在
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖為細胞分裂的過程,圖中 A → B 的步驟進行了什麼動作?
染色體複製
染色體分離
細胞融合
細胞複製
Answer explanation
細胞分裂前會進行複製並無融合的過程
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
雞蛋在孵化成小雞後,幼體之所以能夠一直生長發育,主要是其體內細胞一直進行何種現象?
受精作用
減數分裂
營養器官繁殖
細胞分裂
Answer explanation
生長發育是細胞一直進行細胞分裂
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