G2 phase - meaning and definition. What is G2 phase
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What (who) is G2 phase - definition


G2 phase         
  • Mitosis in an [[animal cell]] (phases ordered counter-clockwise), with G<sub>2</sub> labeled at bottom.
  • This graph illustrates the stable equilibria for cyclin-B1/CDK1 activity at varying cyclin B1 concentrations, with the threshold of cyclin B concentration for entering mitosis higher than the threshold for exiting mitosis.
  • This diagram illustrates the feedback loops underlying the G2/M transition. Cyclin-B1/CDK1 activates Plk and inactivates Wee1 and Myt1. Activated Plk activates cdc25. Activation of Cdc25 and inactivation of Wee1/Myt1 lead to further activation of Cyclin-B1/CDK1. Also shown is the putative role of cyclin-A/CDK2 and Cdc25A as initial activators of the feedback loop, discussed in a later section.
  • Karyotype}}
CELL CYCLE GAP PHASE - INTERVAL BETWEEN THE COMPLETION OF DNA SYNTHESIS AND THE BEGINNING OF DNA SEGREGATION
Second gap; Second gap phase; G2 phase of the cell cycle; G2 stage; Pre-mitotic phase; G2 (growth); Gap-2; Gap 2
G2 phase, Gap 2 phase, or Growth 2 phase, is the third subphase of interphase in the cell cycle directly preceding mitosis. It follows the successful completion of S phase, during which the cell’s DNA is replicated.
Phase transition         
  • A small piece of rapidly melting solid [[argon]] shows two concurrent phase changes. The transition from solid to liquid, and gas to liquid (shown by the white condensed water vapour).
  • Comparison of phase diagrams of carbon dioxide (red) and water (blue) explaining their different phase transitions at 1 atmosphere
  • the anomalous behavior of water]].
TRANSITIONS BETWEEN SOLID, LIQUID AND GASEOUS STATES OF MATTER, AND, IN RARE CASES, PLASMA
Phase transitions; Second order phase transition; First order phase transition; Order parameter; Phase Transition; Second-order phase transition; Phase changes; Phase transformation; Change of state; State change; Phase Transformation; First-order phase transition; First-order transition; Second-order transition; Continuous Phase Transitions; Second-Order Phase Transitions; Phase Transitions; Phase Change; Phase Changes; State Change; State Changes; Changes Of Phase; Change Of Phase; Changes Of State; Change Of State; Continuous phase transitions; Continuous phase transition; Change of phase; Order parameters; Transition of state
In chemistry, thermodynamics, and many other related fields, phase transitions (or phase changes) are the physical processes of transition between a state of a medium, identified by some parameters, and another one, with different values of the parameters. Commonly the term is used to refer to changes among the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases.
Geometric phase         
PHASE OF A CYCLE
Berry Phase; Berry phase; Pancharatnam-Berry phase; Berry's phase; Geometrical phase
In classical and quantum mechanics, geometric phase is a phase difference acquired over the course of a cycle, when a system is subjected to cyclic adiabatic processes, which results from the geometrical properties of the parameter space of the Hamiltonian. The phenomenon was independently discovered by T.