Download or read book Cytology, Genetics, and Evolution written by University of Pennsylvania. Bicentennial Conference and published by . This book was released on 1941 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromosomes and heredity. Chromosome structure. The sex chromosomes: heteropycnosis and its bearing on some general questions of chromosome behavior. Chromosomal interchanges. Chromosomal differences between races and species of drosophila. Evolution of the germplasm. Cytology and genetics of protozoa. Heredity status of the rhizopods. Nuclear behavior and reproduction in ciliated protozoa. Inheritance in ciliated protozoa. Physiology of the nucleus. The chromosomes of the amphibian nucleus. Radiation and the cell nucleus.