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Improvements in Evolutionary Biology – Repetitive series and Intercourse Chromosome Evolution in Vertebrates

Improvements in Evolutionary Biology – Repetitive series and Intercourse Chromosome Evolution in Vertebrates

1. Introduction

Two major kinds of intercourse chromosome systems occur in vertebrates, XX female/XY male (e.g., individual and salmon) and ZZ male/ZW female ( wild wild wild birds and snakes). Just exactly just How these functionally essential chromosomes evolve happens to be an interest for debate for over a hundred years, because the finding of this sex that is first within the belated 1800s 1–3. Inspite of the fascination with this area, difficulties in sequencing extremely repeated Y and W chromosomes have hampered progress towards gaining a fuller understanding regarding the mechanisms associated with their development. Continue reading