El Foro de El Anzuelo Club de Pesca
[
Inicio
] [
Nuevo Tema
]
Autor
Titulo
Mensaje
[citar]Could you give me some smaller notes? <a href=" http://www.booklet.ro/fizica#authorities ">uprima used</a> Since the Y chromosome and mitochondrial DNA are inherited separately and have independent evolutionary histories, their trees do not necessarily spread from contemporaneous roots. Still, the apparent lag between the mitochondrial DNA and Y chromosome lineages has been a head-scratcher for researchers who expected the ancestors to be contemporaneous. âÂÂPeople tied themselves in knots to come up with an explanation,â says Rebecca Cann, an evolutionary biologist at the University of Hawaii at Manoa. [/citar]