Large-scale mutations. 1  Copy number variation (CNV) is a type of mutation where large chunks of DNA are inserted, repeated or lost. 2  Duplication of genes. 3  Deletions of large regions of the chromosome. 4  Loss of one copy of a gene in an organism that previously had two copies.  Loss of both copies of the same gene.
Tulips are spring-blooming perennials that grow from bulbs. Depending on the species, tulip plants can be between 4 inches (10 cm) and 28 inches (71 cm) high. The tulip's flowers usually bloom on scapes with leaves in a rosette at ground level and a single flowering stalk arising from amongst the leaves.
Plant taxonomy classifies tulip trees as Liriodendron tulipifera. For their common name, you will also find tulip poplar and yellow poplar, perhaps because their leaves shake in the breeze a la poplar leaves (quaking aspens). Nonetheless, they aren't poplars at all, being more closely related to magnolias.