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A student claims that transcription factors, regulators, and activators only allow eukaryotic cells to turn on genes when they are needed, but do not help to shut down genes when the genes are not needed. Evaluate the accuracy of the student's statement. The statement is incorrect because transcription factors, regulators, and activators help shut down gene expression by their absence. The statement is incorrect because activators allow eukaryotic cells to turn on genes when they are needed, and transcription factors and regulators function to shut down genes when the genes are not needed. The statement is incorrect because some transcription factors, regulators, and activators can shut down some genes by binding to sites on DNA. The statement is accurate as written.

Respuesta :

abdullahfarooqi

Answer:

The statement is incorrect because transcription factors, regulators, and activators help shut down gene expression by their absence.

eyitbay

Answer:

The statement is incorrect because transcription factors, regulators, and activators help shut down gene expression by their absence.

Explanation:

The essential  proteins   which regulate and control the process of transcription of genes( from DNA to RNA)  during gene expression  for protein synthesis  are called transcription factors. They ensure accuracy and specificity  in gene copying by mediating that right genes are copied in each cell.

Therefore they determine if a gene is needed to be turn on or off.since they regulate the transcription processes. A gene  that is  transcribed  is likely to be expressed to make protein that is turned on, while a gene that is  no transcribed will not be expressed.

Therefore in  their absence  transcription will not occur, and therefore gene expression will be shut down.

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