BIOL 351 Lecture Notes - Lecture 9: Mobile Genetic Elements, Meiotic Drive, Gene Duplication
Document Summary
The study of: genomics all the nucleotide sequences (coding and noncoding junk, introns, majority of genome) But, is it adaptive for other means of. C-paradox no correlation between genome size and complexity. No relationship between size and gene content in exons. Pseeudogenes- genes that lose some function (2 copies and one is tuned off while the other works) vestigial functions similar. Major expansion of genome size with evolution of eukaryotes and especially multicellularity. Within multicellular eukaryotes there is expansion of non: architecture coding dna. Multicellular eukaryotes large genes (with introns) with large spaces. Simple eukaryotes smaller genes (with introns) with smaller spaces. Prokaryotes small genes with no introns: c-value paradox at large genome size there is no relationship between genome size and complexity. Meiotic error can leader to duplication of genome (whole genome. Duplication) and create an organism with more copies of chromosomes. The probability of fusion of two rare non-disjunction. Triploid first bridge (2n + n 3n: allopolyploidy.