Mutational Mosaic Coat Patterns of the Guinea Pig.
TABLE OF CONTENTS PAGE INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333 The Color Factors of Guinea Pigs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 A Somatic and Germinal Mosaic (Ccd+Cdcd). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 Two Intense-dilute Mosaics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342 An Agouti-black Mosaic ( A A +aa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344 Two Intense-dilute Mosaics ( F f + j ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 An Intense Brown-pale Brown Mosaic (Pp+pp). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347 DISCUSSIOV.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 LITERATURE CITED.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
The Nature of Bud Variations as Indicated by Their Mode of Inheritance
THE title limits this accounit to such bud variations as have been studied critically with respect to their iniheritance in sexual reproduction. The further limitation of time makes it necessary that I choose from among such studies certain cases to serve as illustrations of the several types of bud variation. I shall, therefore, attempt no complete review of the researches bearing on the problem at hand. A survey of published accounits of bud-variation studies shows that as yet comparatively little is definitelv known of the real nature of these vegetative sports. It seems not unlikely, however, that to poilit out some of the problems suggested by these studies anid, where possible, to note modes of attack may serve the purpose of this symposium quite as well as a rehearsal of knowii fadts and their interpretation. As here used, the term bud variation is syioillv11ous with vegetative as contrasted with seminal variation. The term somatic variation may also be employed to the same effect, provided it is niot thereby intended to exclude cases in which the germ tract as well as the soma is involved. At the outset, however, there must be imposed on any of these terms, for the purpose of this discussionl at least, the limitation that the variation involves a change in the genetic constitution of the parts affected. The expressions somatic mutation anid somatic segregation are specific terms and as such are niot to be used interchangeably with the more general terms somatic, vegetative, or bud variations. Moreover, to speak of a particular vegetative variation as a case of sonmatic muta1 Paper No. 94, Departmiient of Plant Breedinig, Cornell University, Ithaca, Nn11 -vlk--
The Application of Using Bezier Curve to Design Turbine Blade
The blade of the turbine is analyzed,the principle and characteristics of the Bezier curve are elaborated,the paper presents a method of using Bezier curve to design turbine blade.It was proved that it's a good and simple way to design turbine blade.Through this way,you can build mathematics model easily.It's certainly had some superiority.