CELL BIOLOGY: Size Matters
نویسندگان
چکیده
منابع مشابه
Sperm Biology: Size Indeed Matters
Although sperm are typically thought to be small, tadpole-like cells produced in vast quantities, sperm size, form and number all vary tremendously across species. Sperm form ranges from amoeboid or discoid to multiflagellate elongated structures [1]. Even within the more familiar uniflagellate spermatozoa, length varies by several orders of magnitude, from the tiny 28μm long porcupine sperm to...
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Hyaluronan signaling properties are unique among other biologically active molecules, that they are apparently not influenced by postsynthetic molecular modification, but by hyaluronan fragment size. This review summarizes the current knowledge about the generation of hyaluronan fragments of different size and size-dependent differences in hyaluronan signaling as well as their downstream biolog...
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Telomeres are protective structures present at the ends of linear chromosomes that are important in preventing genome instability. Telomeres shorten as a result of cellular replication, leading to a permanent cell cycle arrest, also known as replicative senescence. Senescent cells have been shown to accumulate in mammalian tissue with age and in a number of age-related diseases, suggesting that...
متن کاملSize matters
Charles Darwin when developing his theory of evolution. And a new study of work on the islands' marine iguanas may help throw some more light on the evolution of body size within these populations. Body size is one of the most important traits of organisms and allows predictions of an individual's morphology, physiology, behaviour and life history. However, explaining the evolution of such comp...
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ژورنال
عنوان ژورنال: Science
سال: 2001
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.294.5546.1419c