which refers to the loss of a portion of a chromosome?
Two or more cultures may be initiated from a single sample. Cytogenetics: The study of the number, structure, behavior, and effects of chromosomes. Deletion: Loss of a whole or part of a chromosome. The term usually refers to loss of part of a chromosome (partial deletion). A terminal deletion refers to breakage and loss of the end of a chromosome; an interstitial deletion is the loss of material from within the chromosome, between the ends.