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THE GENERALIZED CELL
CELL DIVISION AND SYNGAMY
18 other sections not shown
aberrations alleles anaphase animals apomictic apomixis appear autosomes behavior bivalents breakage cell division centrioles centromere chemical chiasma chiasmata chromatids chromo chromomeres chromosome number coiling complex crossing cytological cytoplasm Darlington deficiencies determined differentiation diploid double crossovers Drosophila duplication effect embryo euchromatin female fertilization fibers formation frequency function gametes genes genetic genic haploid heterochromatin homologous homozygous Hughes-Schrader hybrid hypothesis indicated interphase inversions involved karyotype known length lethals loci locus maize male mechanism meiosis melanogaster metaphase metaphase plate microspores mitosis mitotic mutations normal nucleic acid nucleolus nucleus occur organisms origin pairing parthenogenesis percent phenotype plants plastids pole pollen polyploidy produced prophase protein radiation recombination region result ring ring chromosomes roottip salivary gland chromosomes segregation sexual similar single somatic species sperm spermatocytes spindle stage structure studies suggests Swanson synapsis takes place telophase tetraploid tion tissues Tradescantia translocation triploid X-chromosome x-rays