题目
BIOL_1105_60452_202506 Lesson 13 Homework
多重下拉选择题
The central dogma of molecular biology states that Molecule 1, the DNA molecule, is converted into Molecule 2, the RNA molecule. The process by which this occurs is Process X. [ Select ] transcription translation replication . Molecule 2 is then converted into Molecule 3, the [ Select ] RNA DNA peptide molecule, through Process Y. [ Select ] transcription replication translation .
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标准答案
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思路分析
The question describes the central dogma: Molecule 1 is DNA, Molecule 2 is RNA, and Molecule 3 is a peptide, with two processes linking them.
First, we restate what the scenario says to make the expected mapping clear:
- Molecule 1 (DNA) is converted into Molecule 2 (RNA) by Process X.
- Molecule 2 (RNA) is converted into Molecule 3 (peptide) by Process Y.
Now, evaluate what each dropdown should correctly be:
Option 1 (what Molecule 2 is derived from Molecule 1): For DNA to RNA, the correct process is transcription, and the result is RNA. Therefore, the intended selection here should ide......Login to view full explanation登录即可查看完整答案
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Question at position 2 The normal flow of genetic information for gene expression is best represented in which of the answers below?RNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>DNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math> ProteinProtein ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>RNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math> DNADNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>RNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math> ProteinProtein ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>DNA ⟶\longrightarrow⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math>⟶<math xmlns="http://www.w3.org/1998/Math/MathML"> <mo stretchy="false">⟶</mo> </math> RNAGene expression involves DNA (genes) only
Which of the following correctly represents the flow of genetic information according to the central dogma of molecular biology? (without the exceptions)
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