Abstract Background Duplicated genes frequently experience asymmetric rates of sequence evolution. Relaxed selective constraints and positive selection have both been invoked to explain the observation that one paralog within a gene-duplicate pair exhibits an accelerated rate of sequence evolution. In the majority of studies where asymmetric divergence has been established. there is n... https://countryscenesaddleryandpetsuppliers.shop/product-category/weymouth-bridle-double-bridle-noseband/