منابع مشابه
Live Hot, Die Young: Transmission Distortion in Recombination Hotspots
There is strong evidence that hotspots of meiotic recombination in humans are transient features of the genome. For example, hotspot locations are not shared between human and chimpanzee. Biased gene conversion in favor of alleles that locally disrupt hotspots is a possible explanation of the short lifespan of hotspots. We investigate the implications of such a bias on human hotspots and their ...
متن کاملLive fast, die young, and win the sperm competition.
Consider the two mammalian species shown in Fig. 1. The brown antechinus (Antechinus stuartii) has a fast life cycle and “big bang” reproduction, with males that mate for only a single breeding season in 1 y and then die a programmed death associated with lethal immune system collapse (1). The other mammalian species (Homo sapiens) has a long life during which males can mate during up to or bey...
متن کاملBig mice die young but large animals live longer
It has been known for millennia that large animals live longer, inspiring numerous theories of aging. For example, elephants and humans live longer than mice, which in turn live longer than worms and flies. The correlation is not perfect, with many explainable exceptions, but it is still obvious. In contrast, within each species (e.g., mice and some other mammals) small body size is associated ...
متن کاملDie young or live long: modeling subjective survival probabilities
Modeling of subjective survival is critical to the use of mortality expectations in economic models and the life insurance industry. Subjective scaling factors that are used to adjust average survival probabilities for individual expectations are often based on a single observation of personal life expectancy and assumed to be constant for any projected target age. Using survey data on subjecti...
متن کاملGranules live and let die
A chemical that boosts our ability to learn and remember also boosts blood clotting, say Morrell et al. (page 575). The learning chemical, glutamate, is released at neuronal synapses, where it activates neurons by binding to ion channel receptors. Glutamate is also abundant in the blood—particularly in clot-forming platelets—but its function outside the brain was unknown. Morrell et al. now fin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 2017
ISSN: 0028-0836,1476-4687
DOI: 10.1038/545286a