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MRNA processing


mRNA processing: Refers to the processes of polyadenylation, splicing, and addition of a 5' cap structure.
Metaphase: A stage in mitosis or meiosis during which the chromosomes are aligned along the equatorial plane of the cell.
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Transcription and mRNA processing occur in the nucleus.
The nucleus is surrounded by a double membrane. After the mature mRNA transcript is produced, it moves out of the nucleus and into the cytoplasm through pores in the nuclear membrane.
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In the cells of the intestine, an additional step of pre-mRNA processing occurs: the chemical modification of the C nucleotide in Codon 2153 (CAA) into a U.
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Aside from containing the cell's genome, the nucleus contains certain proteins whose interplay is thought to regulate the expression of genes. Gene expression at the nuclear level involves complex processes of transcription, pre mRNA processing and ...
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