1.(Botany) a layer of nutritive cells in the sporangia of ferns and anthers of flowering plants that surrounds developing spore cells 2.(Zoology) a.a membranous reflecting layer of cells in the choroid of the eye of nocturnal vertebrates ...
(young in time of origin and in time of distribution), conservative, and relict elements. Relicts are regarded as survivals of past states of the vegetational cover. The availability of paleobotanical data makes it possible to determine the age of certain elements of a flora and the time the...
In any of their use cases, Mousers can be considered a symbol of wealth. Having many Mousers to prevent mice is considered a trait of clean homes. Having many Mousers of differing origin is considered a trait of wealthy, clean homes. It is not too difficult to gain a mother Mouser and ...
ATALE distribution in the chromosome and plasmids ofXcmTX4 and MSCT1. TALEs inXcmTX4 were designated numerically from the replication origin of the chromosome and plasmids. TALEs inXcmMSCT1 were designated previously using a different scheme29. The same-colored boxes indicate TALEs with identical RVD...
Her voice was the most “inspiring”for plants than those of nine other gardeners when reading a passage from TheOrigin of Species. The great-great-granddaughter of the famous botanistCharles Darwin found that her plant grew about two inches taller than the plantof the best male gardener. ...
Origin of exine. Nature 195, 1069–1071 (1962). Article ADS CAS Google Scholar Dickinson, H. G. & Heslop-Harrison, J. Common mode of deposition for the sporopollenin of sexine and nexine. Nature 220, 926–927 (1968). Article ADS CAS PubMed Google Scholar Mariani, C., De Beucke...
The other class of sequences is not obviously of modern origin. Further experiments were therefore performed to determine if this class is endogenous to the Neandertal fossil. Quantitation of Putative Neandertal DNA Amplifications that start from more than 1000 ancient template molecules tend to ...
Similar conclusions can be extended to the common or separate origin of the cœliac and the cranial mesenteric arteries. In contrast, other specific arterial traits can be interpreted from a functional and/or evolutionary standpoint. We discuss these implications for the following characteristics: ...
of demographic isolation in geographically and chronologically close hominins around the origin of the Neandertal clade34, and as previously suggested35and recently shown36, there is a high incidence of developmental abnormalities and anomalies in PleistoceneHomo, several of them very rare or with ...
ori: origin of replication of plasmid pBGS8; bclI: cleavage site of restriction enzyme BclI; EcoRI: cleavage site of restriction enzyme EcoRI; HindIII: cleavage site of restriction enzyme HindIII; PstI: cleavage site of restriction enzyme PstI; ...