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MEIOSIS is needed to keep the chromosome number the same in diploid sexual creatures from one generation to the next. https://lnkd.in/dGqaW47 View in LinkedIn

MEIOSIS is at the heart of longevity and only occurs in sexual creatures. http://www.bu.edu/gk12/sully/AsexualLessonKey.pdf View in LinkedIn

FITNESS ADVANTAGE OF SEX. "The observed advantage in fitness of naturally occurring, sexually derived genotypes over asexually derived genotypes during adaptation reaches 30%–50%, but this underestimates the difference in fitness between “high-sex” genotypes and “low-sex” genotypes." https://lnkd.in/ePUmiA8 View in LinkedIn

ALLELE DIVERGENCE. "Though sex does not immediately affect allele frequencies, it alters the genetic variance, which allows subsequent selection to cause allele frequencies to diverge between more versus less sexual lineages." https://lnkd.in/ePUmiA8 View in LinkedIn

SEX WINS. "The redistribution of alleles through sex can result in the variance of sexually derived offspring being different (higher or lower) than that of asexually derived offspring." https://lnkd.in/ePUmiA8 View in LinkedIn

VELOCITY OPTION. "Finally, it is possible that fast-growing tissues are resource-limited but slow-growing ones are not, so that a small excess in resources freed up by diminution or removal of one body part only affects the growth of the fastest-growing tissues." http://www.pnas.org/content/95/7/3685.full View in LinkedIn

TEMPORAL OPTION. "Alternatively, it is possible that tissues whose growth periods coincide in time share certain resources that are not available to other tissues and, therefore, compete with each other but not with other tissues." http://www.pnas.org/content/95/7/3685.full View in LinkedIn

SPATIAL OPTION. "It is possible that allocation is compartmentalized so that tissues that are physically close to the site of loss receive a disproportionate to amount of the excess resource." http://www.pnas.org/content/95/7/3685.full View in LinkedIn

https://lnkd.in/dFnjHSQ http://www.sciencedirect.com/science/article/pii/S0149763404000259 View in LinkedIn

TRAIT SPECIFIC. "It is significant that the allocation tradeoff is not diffuse or generalized but is concentrated on only one or a few traits. There are several possible developmental mechanisms that could explain the preferential allocation of excess resources to certain tissues and not to others." http://www.pnas.org/content/95/7/3685.full View in LinkedIn