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Biology, 16.11.2019 00:31, edsimms21111
People with multiple sclerosis (ms) experience many challenging symptoms. which statement best explains one cause of these difficulties? people with multiple sclerosis (ms) experience many challenging symptoms. which statement best explains one cause of these difficulties? loss of oligodendrocytes in the central nervous system results in absence of the myelin sheath of neuronal axons, impairing rapid saltatory conduction. an increase in the number of oligodendrocytes in the central nervous system results in an overgrowth of the myelin sheath of neuronal axons, resulting in abnormally large action potentials. damage to ependymal cells results in stagnation of cerebrospinal fluid, damaging neurons. a loss of astrocytes causes leaked neurotransmitters and k+ to accumulate, impairing generation of action potentials.
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Biology, 22.06.2019 00:20, ayoismeisjjjjuan
6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?
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People with multiple sclerosis (ms) experience many challenging symptoms. which statement best expla...
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