生物進行減數分裂的主要目的為何?

生殖

Quiz
•
Science
•
7th - 9th Grade
•
Easy
yihru lee
Used 9+ times
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56 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
增加子代對環境的適應力
複製同源染色體
維持有性生殖子代染色體的數目不倍增
保存親代的特徵。
2.
MULTIPLE CHOICE QUESTION
1 min • 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
同色染色體
同源染色體
親代染色體
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖為洋蔥根尖的組織切片。下列何者為箭頭所指的構造?
葉綠體
染色體
細胞壁
粒線體
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
某細胞中具有四條染色體經過複製後如附圖,請問哪種染色體組合為「同源染色體」?(多選)
甲丙
甲乙
甲乙丁
丙丁
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一個是卵細胞,另一個是骨細胞。請問卵細胞與骨細胞內的染色體套數應該分別是哪一種?
n;n
n;2n
2n;n
2n;2n。
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某生物有甲、乙兩類細胞,其染色體分別如圖所示。下列對甲、乙兩類細胞的敘述何者正確?
甲細胞染色體與乙細胞染色體完全不同
甲細胞染色體的套數為乙的兩倍
甲、乙兩類細胞均勻分布在各器官中
甲、乙兩細胞中均有成對的同源染色體
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一項無法區分一個人的肌肉細胞及皮膜細胞?
功能
構造
形態
染色體數目
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