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.
How to Plant Tulip Bulbs. Two Parts:Getting Ready to PlantPlanting the BulbsCommunity Q&A. Tulips are a gorgeous spring flower that come in a rainbow of colors and a myriad of shapes. Plant them in the fall, before the ground gets cold and hard, and watch them grow and bloom when the weather turns warm in the spring. Keep reading to learn more about planting tulip bulbs.