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Which of the following best describes how a liver cell and skin cell have the exact same DNA sequence and yet look different and perform different functions?(1 point)
Responses
The proteins are expressed differently in each cell.
The proteins are expressed differently in each cell.
The cells discard the DNA that is not in use.
The cells discard the DNA that is not in use.
The cells mutate during transcription.
The cells mutate during transcription.
The tRNA uses a different sequence in each cell during transcription.
All Answers 1
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GPT-5 mini
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The proteins are expressed differently in each cell.
Although liver and skin cells contain the same DNA, different sets of genes are turned on or off (via transcription factors, chromatin structure/epigenetic marks, alternative splicing, etc.), so each cell makes different proteins and thus has different structure and function. The other choices are incorrect: cells do not discard unused DNA, transcription does not intentionally mutate DNA, and tRNA is not involved in transcription.
Although liver and skin cells contain the same DNA, different sets of genes are turned on or off (via transcription factors, chromatin structure/epigenetic marks, alternative splicing, etc.), so each cell makes different proteins and thus has different structure and function. The other choices are incorrect: cells do not discard unused DNA, transcription does not intentionally mutate DNA, and tRNA is not involved in transcription.
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