Beyond Direct mRNA Targeting: The miRNA-Transcription Factor ConnectionWhile miRNAs primarily influence gene expression by targeting mRNAs, they can also indirectly regulate gene activity by targeting transcription factors. These are proteins that control the initiation of gene transcription (copying DNA into RNA). By regulating transcription factors, miRNAs can significantly impact how cells develop and function.

n animal cells, the endogenously produced miRNAs silence gene expression by(A) base pairing with the 3'-untranslated region of specific mRNAs(B) blocking mRNA synthesis(C) binding to the operator site(D) base pairing with the 3' region of specific rRNAs

What is a transcription factor or transcription regulator? A protein required for mRNA nuclear export A protein that regulates DNA synthesis A protein that interacts with mRNA and increases translation A protein that binds to the DNA origin of replication A protein that binds to a cis-regulatory DNA sequence and affects the probability of gene transcription

What is the role of transcription factors in gene expression? How might general vs. specific factors function in gene expression?

In animal cells, the endogenously produced miRNAs silence gene expression b

Select the correct answer from each drop-down menu.RNA interference (RNAi) is a mechanism of gene regulation in eukaryotes. RNAi is initiated by , which leads to the of specific genes.