Multiple Choice
Which of the following best describes a disease such as deafness?
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1. Introduction to Biology
Introduction to Biology
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Which of the following best describes the central dogma of molecular biology as introduced in Chapter 17 of AP Biology?
A
Proteins are transcribed into RNA, which is then translated into DNA.
B
DNA is directly translated into protein without an RNA intermediate.
C
RNA is replicated to form DNA, which is then translated into protein.
D
DNA is transcribed into RNA, which is then translated into protein.
Verified step by step guidance1
Understand the central dogma of molecular biology: It describes the flow of genetic information within a biological system, specifically how genetic information is expressed as proteins.
Recall the key processes involved: (1) Transcription, where DNA is used as a template to synthesize RNA, and (2) Translation, where RNA is used as a template to synthesize proteins.
Eliminate incorrect options: Proteins cannot be transcribed into RNA, and RNA is not replicated to form DNA in the central dogma. Additionally, DNA is not directly translated into protein without an RNA intermediate.
Focus on the correct sequence: DNA is transcribed into RNA, and RNA is then translated into protein. This is the correct description of the central dogma.
Conclude that the correct answer is: 'DNA is transcribed into RNA, which is then translated into protein.' This aligns with the fundamental principles of molecular biology.
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