Evidence for organelle origin
نویسندگان
چکیده
منابع مشابه
Evidence for a recent origin of penguins.
Penguins are a remarkable group of birds, with the 18 extant species living in diverse climatic zones from the tropics to Antarctica. The timing of the origin of these extant penguins remains controversial. Previous studies based on DNA sequences and fossil records have suggested widely differing times for the origin of the group. This has given rise to widely differing biogeographic narratives...
متن کاملEvidence for a neotropical origin of Leishmania.
Contradictory biogeographic hypotheses for either a Neotropical or a Palaearctic origin of the genus Leishmania have been proposed. Hypotheses constructed on the basis of biogeographic data must be tested against an independent dataset and cannot be supported by biogeographic data alone. In the absence of a fossil record for the Leishmania these two hypotheses were tested against a combined dat...
متن کاملMolecular evidence for the origin of birds.
The major groups of amniote vertebrates appeared during a relatively short time span at the end of the Paleozoic Era, a fact that has caused difficulty in estimating their relationships. The fossil record suggests that crocodilians are the closest living relatives of birds. However, morphological characters and molecular sequence data from living amniotes have repeatedly challenged this hypothe...
متن کاملTrichloroethylene ototoxicity: evidence for a cochlear origin.
Trichloroethylene (TCE) is known to produce an unusual pattern of hearing impairment in laboratory animals marked by a preferential loss of threshold sensitivity at midfrequencies. The purpose of this research was to determine whether the TCE-induced auditory deficit results from cochlear dysfunction. Adult Long Evans hooded rats were exposed via inhalation to either 0 (clean air) or 4000 ppm T...
متن کاملThe origin of evidence.
Forensic science is an applied science based on the laws of physics and chemistry. Over time, a set of fundamental concepts has developed that apply specifically to a forensic analysis. Traditionally, five concepts have been articulated: transfer, identification, individualization, association between source and target, and reconstruction. We suggest that an additional sixth concept, the idea t...
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: Genome Biology
سال: 2005
ISSN: 1465-6906
DOI: 10.1186/gb-spotlight-20050303-01