New payment models may ultimately prove to be the best option to systematically improve payment for primary care, but there is an uncertain track record with them, and the investment in the practice that is required makes for an uncertain and uneasy cost-benefit for primary care physicians.
Sexual reproduction is most advantageous , due to genetic variation . Meiosis plays an important part in sexual reproduction. During meioisis , after synapsis , genetic recombination occurs , dure to which we get varied gene pairs as well parental strands too .
By asexual reproduction, an organism creates a genetically similar or identical copy of itself. The evolution of sexual reproduction is a major puzzle for biologists. The two-fold cost of sexual reproduction is that only 50% of organisms reproduce and organisms only pass on 50% of their genes.