Now showing items 1-10 of 14
Protein synthesizing systems from spores and vegetative cells of Bacillus cereus
(Springer-Verlag, 1979-06)
A system of polyphenylalanine synthesis was optimized for a comparison of the polymerizing activities of ribosomes from spores and vegetative cells of Bacillus cereus T. Ribosomes of both types react similarly, showing a ...
Patterns of tooth size variability in the dentition of primates
(Wiley Subscription Services, Inc., A Wiley Company, 1979-09)
Published data on tooth size in 48 species of non-human primates have been analyzed to determine patterns of variability in the primate dentition. Average coefficients of variation calculated for all species, with males ...
The primary vascular system of Callixylon
(Elsevier, 1979-08)
The primary vascular system of Callixylon (main stem axes of Archaeopteris) is composed of a discontinous cylinder of longitudinal bundles from some of which traces diverge radially in a regular, helical pattern. Tangential ...
Homologies of the anterior teeth in indriidae
(Wiley Subscription Services, Inc., A Wiley Company, 1979-08)
Schwartz ('74) proposed revised homologies of the deciduous and permanent anterior teeth in living lemuriform primates of the family Indriidae. Gingerich ('77) described a juvenile specimen of Avahi and emphasized the ...
Development of Dentalium following removal of D-quadrant blastomeres at successive cleavage stages
(Springer-Verlag, 1979-12)
Each primary micromere and macromere of the D-quadrant of Dentalium was deleted, through the mesentoblast stage, to investigate the way in which the polar lobe cytoplasm exerts its influence on development.-D and -1D embryos ...
How to determine the compatibility of undirected character state trees
(Elsevier, 1979-10)
Methods for cladistic character compatibility analysis have required a priori estimates of the direction of evolutionary trends among the states of a character, in order to ensure consistency. Results are presented here ...
Song structure, behaviour, and sequence of song types in a population of village indigobirds, Vidua chalybeata
(Elsevier, 1979-11)
Different song types are associated with certain behaviours including intrasexual aggression, mating, and initiation of song bouts. All song types are used in territorial advertisement. Songs associated with sexual and ...