BIO130H1 Lecture 4: Molecular Biology of the Cell - Lecture 4 Readings
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this is due to the fact that many eukaryotic genomes have large sections of non-coding. Dna, that seems to have no function, some however regulate gene expression. thus, the human genome is exons separating amongst a vast majority of introns y concise genomes cells lack introns, thus only carry a majority of coding bits. regulatory genes are vastly important as well, they dictate what gene is to be expressed when and how y. this is basically the relationship that states that the regions that have valuable information have not evolved over time, they have been conserved, unlike those sections that are introns. thus, when comparing, say, human and mouse genomes, the sections that appear similar, are the ones that are exons because they have been conserved. conserved regions include regions of gene expression, and regulatory gene sequences.
