2-2 遺傳物質單
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Hard
東茂 葉
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
各生物彼此間的基因之所以不同,主要是因為
Answer explanation
4種核苷酸以不同的數目、順序進行排列
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
若DNA具有遺傳密碼ATC,此遺傳密碼轉錄成的RNA上相對應的含氮鹼基序列為何?
Answer explanation
DNA的遺傳密碼為ATC,RNA以UAG與其對應
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
在真核細胞中關於DNA製造RNA的過程,下列相關的敘述何者正確?
Answer explanation
DNA→RNA的過程稱為轉錄,在細胞核中進行
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
某生分析2個核酸分子的組成,發現共有2種五碳醣、3條核苷酸鏈、5種含氮鹼基、8種核苷酸,則此2個核酸分子應為
Answer explanation
2個核酸分子有2種五碳醣、5種含氮鹼基、8種核苷酸,推論應包含DNA及RNA。2個核酸分子中有3條核苷酸鏈,因DNA為雙股,RNA多為單股,推論有1條DNA、1條RNA
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
當DNA經轉錄作用形成RNA時,原DNA上之含氮鹼基若為A,RNA上與A對應之核苷酸為何?
Answer explanation
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
原核細胞發生轉錄作用的位置在何處?
Answer explanation
轉錄位置:真核─細胞核;葉綠體、粒線體、原核─細胞質
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列現象的發現,何者與遺傳的染色體學說之建立最不相關?
Answer explanation
染色體遺傳學說由薩登和包法利所提出,依據觀察細胞內染色體的變化與遺傳因子(基因)的相似性,提出遺傳因子位於染色體上 (A)染色體遺傳學說並未說明染色體的組成
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