2-2 遺傳物質
Quiz
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
葉東茂 葉東茂
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
DNA的半保留複製,其子代DNA的兩股核苷酸鏈為何?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某段核酸序列為CGAGTTAT,若轉錄後新形成的應為何者?
3.
MULTIPLE CHOICE QUESTION
30 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?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
實驗室中甲由細胞核中分離出一段核酸,分析後發現:乙、五碳醣為核糖,丙、五碳醣分子數 = 含氮鹼基分子數,丁、含氮鹼基分子數A ≠ G,戊、含有尿嘧啶。請問甲~戊中,有幾項可以支持此段核酸必為RNA分子?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列有關DNA、RNA化學組成的敘述,何者正確?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
細菌在15N的培養基中繁殖很多代後,轉移至14N的培養基中培養,經過一次及二次分裂後,DNA兩股仍為15N的百分比各為多少?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「DNA→RNA→蛋白質」是分子細胞學的中心法則,則DNA與其轉錄出的RNA分子量比值(DNA/RNA)大約為多少?(核苷酸的平均分子量為330)
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