THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They regulate the synthesis of DNA in response to a signal.
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Some transcribe ATP into cAMP.
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They control which genes are expressed.
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Detailed explanation-1: -The primary regulators of gene expression are transcription factors (TFs). TFs are proteins that can bind specific DNA sequences and regulate gene expression. Their evolution is influenced by a large number of factors, including epigenetic mechanisms, gene regulatory elements and molecular cofactors.
Detailed explanation-2: -Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA. Transcription factors include a wide number of proteins, excluding RNA polymerase, that initiate and regulate the transcription of genes.
Detailed explanation-3: -And so the correct answer is that they control which genes are turned on to form MRNA transcription factors are proteins that regulate the transcription of genes.
Detailed explanation-4: -Transcription factors are vital molecules in the control of gene expression, directly controling when, where and the degree to which genes are expressed. They bind to specific sequences of DNA and control the transcription of DNA into mRNA.