
DNA replication、transcription、translation
Quiz
•
Science
•
10th - 12th Grade
•
Hard
Chien Y
Used 11+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一條具有放射性元素之染色體,如附圖所示,若此染色體複製過程中之原料均不具放射性元素,則複製完成後,染色體之放射性元素分布情形為何?(以塗黑表示有放射性元素存在,而空白表示無)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
生物細胞內具有多種分子,下列何種分子最大?
磷酸
核酸
核糖
核苷酸
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
假設某種生物的 DNA 中有五種鹼基,其遺傳密碼子由四個鹼基決定,則該種生物最多能有多少種不同的遺傳密碼子?
54
45
34
35
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關真核細胞進行DNA複製的敘述,何者正確?
需要四種核糖核苷酸為原料
依模版股複製完全相同的新股
需要 DNA 聚合酶催化核苷酸鏈的形成
複製後形成一舊一新的兩個 DNA 分子
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
細菌 DNA 複製的實驗如附圖。細菌 DNA 分子在複製時,培養基中若含有 15N 的鹼基,則 15N 會被合成入 DNA 中。今天甄甄將細菌在 15N 的培養基中繁殖很多代之後,再將細菌接種於含 14N 的新培養基中培養。下列有關細菌在新培養基中進行細胞分裂的敘述,何者正確?
經過一次分裂後,1∕4 的細菌具有 15N 的 DNA
經過一次分裂後,半數的細菌具有 15N 的 DNA
經過兩次分裂後,1∕4 的細菌具有 15N 的 DNA
經過兩次分裂後,半數的細菌具有15N 的 DNA
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
下列有關真核細胞基因表現的敘述,哪些正確?(應選3項)
需要依序進行轉錄和轉譯兩個步驟
需要 DNA 聚合酶和 RNA 聚合酶的參與
需要組成 DNA 和 RNA 的 8 種核苷酸為原料
需要供應高能量分子 ATP
需要供應組成蛋白質的 20 種胺基酸
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
下列有關真核細胞遺傳物質表現的敘述,哪些正確?(應選2項)
轉錄作用在核糖體上進行
轉譯作用在細胞質內進行
將 DNA 上的遺傳訊息抄錄至 RNA 上的過程稱為轉譯作用
利用 DNA 聚合酶,將 DNA 上遺傳訊息抄錄至 RNA 上
當基因表現時,DNA 的兩股會先分開,僅以其中一股的核苷酸序列為模版,合成一股 RNA
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