- 行业: Education
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Founded in 1946, Palomar College is a public two-year community college in the city of San Marcos, located in north San Diego County, California. Palomar offers over 300 associate degree, certificate programs and is designated by the U.S. Department of Education as an Hispanic-Serving Institution ...
Una caratteristica genetica controllata da più di un allele, ognuno dei quali ha una frequenza di 1% o maggiore nella popolazione gene piscina. Vedere polimorfismo bilanciato.
Industry:Anthropology
Una data che pone un evento nella sua posizione cronologica con riferimento a una scala di tempo universale come un calendario. Tali date di solito sono dati in termini di numero di anni prima o dopo un calendario, punto di partenza. Per esempio, 1950 B. C. era 1950 anni prima della data di inizio del calendario gregoriano, che è comunemente usato oggi. Metodi di datazione cronometrica includono l'uso di documenti scritti, dendrocronologia e metodi radiometrici. Vedere la relativa data.
Industry:Anthropology
Un pigmento organico colorato scuro prodotto nella pelle. Ci sono due forme di melanina----feomelanina, che è rosso di colore giallo, e la eumelanina, che è di colore marrone scuro al nero. Persone con pelle di carnagione chiara producono principalmente feomelanina, mentre quelli con il colore scuro della pelle producono principalmente eumelanina. Alte concentrazioni di melanina vicino alla superficie del risultato in una carnagione più scura della pelle. Pelle abbronzata ha anche alte concentrazioni di melanina.
Industry:Anthropology
A genetically inherited progressive disease of the central nervous system. MS occurs as a consequence of one's own immune system attacking the insulating sheath that normally protects neurons. Symptoms range from numbness and tingling to paralysis. There is a loss of motor and cognitive functions. The gene(s) responsible for MS are incompletely penetrant in that the onset of the disease is apparently triggered by a virus and possibly other environmental factors. There is a correlation between the amount of sunlight that children are exposed to and the likelihood that they will develop MS later in life. People who spend much of their first 16 years in tropical and subtropical regions of the world are much less likely to develop this disease than those who live in far northern and far southern regions of our planet. It is believed that the lack of abundant sun exposure early in life is somehow responsible for the later onset of MS.
Industry:Anthropology
A genetic pattern in which an individual has two distinct cell groupings--one with normal cells and another with a genetic problem. For instance, some people with Down syndrome produce both normal somatic cells and cells with an extra.
Industry:Anthropology
The study of plant pollen, usually for the purpose of reconstructing ancient climates and dating soil strata. Palynology is an important tool of paleoecology.
Industry:Anthropology
The study of primates and their behavioral patterns. Primatologists usually carry out long term field studies of free-ranging populations.
Industry:Anthropology
The study of the conditions under which plants, animals, and other organisms become altered after death, buried, and sometimes preserved as fossils.
Industry:Anthropology
Lo studio delle strutture della crosta terrestre, come piastre continentali e le forze che causano loro di cambiare forma e spostare rispetto a altro. Vedere movimento tettonico.
Industry:Anthropology
The study of the fossil and archaeological record of humans and their primate ancestors. It is also known as "human paleontology. "
Industry:Anthropology
