Salivary Gland Chromosomes Formed by endoreduplication in Drosophila larval stages. There are about 5000 bands, corresponding to complementation groups. Useful for examining changes in chromosome structure in Drosophila .
Inversion See animation.
Crossover Suppression See animation. Balanced Lethals Bd shows scalloped wings in heterozygotes, but is lethal when homozygous. Reciprocal Translocations Contents. Human Chromosome Techniques Combination of the following techniques allows one to identify human chromosomes in preparations from mitotic cells. More on banding techniques, by Emel Atalay Contents.