Dictionary entry overview: What does umbel mean? â¢ UMBEL (noun) The noun UMBEL has 1 sense: 1. flat-topped or rounded inflorescence characteristic of the family Umbelliferae in which the individual flower stalks arise from about the same point; youngest flowers are at the center Familiarity information: UMBEL used as a noun is very rare.
DNA replication occurs during the S stage of interphase. Interphase is the stage between two mitotic or meiotic divisions. It can be slpit into three stages:G1, S and G2. During G1 (gap 1), cells grow and build up ATP on preparation for DNA replication. During the S (synthesis) phase the DNA is replicated. During the G2 phase the cell prepares itself for the process of cell division (mitosis or meiosis). See: http://www.emc.maricopa ....
This is largely a growth phase, during which there is a lot of biosynthesis of proteins, lipids, and carbohydrates. However, there is no synthesis of new DNA at this time. G1. is the longest of the cell cycle phases in many cell types, and most of the physiological. activity of a cell happens during G1. Following G1, the next phase of the cell cycle is the S. phase, during which synthesis of new DNA occurs. In other words, the genome is being. replicated during this phase; thus at the end of S phase, the cell has twice the normal. amount of DNA.