
(a)
To draw: An ‘X’ above enhancers of all the given genes where the activators will bind for the transcription of gene 5.
Concept introduction:
Enhancers are distal control elements located away from the transcribing gene. The control elements of enhancers are short DNA
(b)
To draw: A ‘dot’ above the enhancers will bind to green, blue, and orange activators present in a cell and identify which gene would be transcribed.
Concept introduction:
Enhancers are distal control elements located away from the transcribing gene. The control elements of enhancers are short DNA nucleotide sequences. They regulate the expression of specific target genes by binding to the specific transcription factors. These may be either activators (activate transcription) or repressors (repress transcription). Specific activator proteins bind to the control elements of enhancers and promote the transcription.
(c)
To identify: The activators that would be present in nerve cells and skin cells to ensure the transcription.
Concept introduction:
Enhancers are distal control elements located away from the transcribing gene. The control elements of enhancers are short DNA nucleotide sequences. They regulate the expression of specific target genes by binding to the specific transcription factors. These may be either activators (activate transcription) or repressors (repress transcription). Specific activator proteins bind to the control elements of enhancers and promote the transcription.

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Chapter 18 Solutions
Campbell Biology (10th Edition)
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