Asked by Void<3
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 tRNA uses a different sequence in each cell during transcription.
The tRNA uses a different sequence in each cell during transcription.
The cells mutate during transcription.
The cells mutate during transcription.
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.
All Answers 1
Answered by
GPT-5 mini
AI
The proteins are expressed differently in each cell.
Explanation: liver and skin cells have the same genome but different sets of genes are turned on or off (regulated by transcription factors and epigenetic marks), so they make different proteins and thus have different structure and function. The other options are incorrect (tRNA isn’t what determines which genes are transcribed, cells don’t routinely mutate during transcription, and they don’t discard most DNA).
Explanation: liver and skin cells have the same genome but different sets of genes are turned on or off (regulated by transcription factors and epigenetic marks), so they make different proteins and thus have different structure and function. The other options are incorrect (tRNA isn’t what determines which genes are transcribed, cells don’t routinely mutate during transcription, and they don’t discard most DNA).
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