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The interphase nucleus I
The mechanism of mitosis
Number form and size of chromosomes
8 other sections not shown
abnormal acrocentric amount anaphase animals appearance associated autosomes bands become bivalents breaks cells cent centric centromeres certain changes chiasma chiasmata chromatids chromo chromosomal rearrangements chromosome number close complex contain cytoplasm diploid double Drosophila early eggs ends evidence evolution exist female four frequency fusion genes genetic give grasshopper groups heterochromatin heteropycnosis higher human hybrids individuals insects instances interphase inversions involving karyotype kind known later lead length loops majority male material mechanism meiosis meiotic division metacentric metaphase mitosis natural normal nuclear nuclei occur organisms orientation origin pair paternal plants pole polymorphism polyploid polytene populations possible present probably produced regions relatively replication result rings seems seen segments separate sex chromosome short shown similar single somatic species spindle stage strands structure studied supernumerary synapsis terminal tion tissues translocations types undergo usually various