In the ileum image, where is ASBT mRNA expression observed?

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Study for the ACVIM Small Animal Internal Medicine Exam to enhance your veterinary knowledge. Prepare with flashcards and multiple-choice questions, featuring hints and explanations. Ensure success in your exam journey!

Multiple Choice

In the ileum image, where is ASBT mRNA expression observed?

Explanation:
mRNA is made in the nucleus and then moves to the cytoplasm to be translated, so detecting ASBT mRNA can appear in both compartments. The nucleus shows transcription sites with nascent or unspliced transcripts, while the cytoplasm contains mature mRNA ready for translation. In ileal enterocytes, this dual localization reflects the normal flow of gene expression. Mitochondria don’t host mRNA transcription for this gene, so they wouldn’t show ASBT mRNA signal.

mRNA is made in the nucleus and then moves to the cytoplasm to be translated, so detecting ASBT mRNA can appear in both compartments. The nucleus shows transcription sites with nascent or unspliced transcripts, while the cytoplasm contains mature mRNA ready for translation. In ileal enterocytes, this dual localization reflects the normal flow of gene expression. Mitochondria don’t host mRNA transcription for this gene, so they wouldn’t show ASBT mRNA signal.

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