Interphase (Interphase), Interkinesis (Interkinesis)

Interphase and Interkinesis are two important periods in the life cycle of a cell when various processes necessary for its survival and reproduction occur.

Interphase is the period of time between two successive cell divisions (mitoses). During this period, the cell does not divide, but actively performs many other functions. The most prominent of these functions is DNA synthesis, which occurs during the synthesis phase (S phase) of interphase. At this point, the cell is actively copying its genetic information to prepare for the next division. In addition, during interphase the cell grows and performs many metabolic processes necessary to maintain its vital functions.

Interkinesis is the period of time between two phases of cell division (mitosis or meiosis). During this period, the cell does not divide, but continues to prepare for the next division. Unlike interphase, only one phase of DNA synthesis occurs in interkinesis. However, instead of copying its genetic information, the cell performs a number of other processes necessary to prepare for the next division. For example, during interkinesis, a cell may produce proteins needed for division or process chemicals to prepare for assembly of the mitotic spindle.

In general, interphase and interkinesis are critical periods in the life cycle of a cell that allow it to prepare for the next division and maintain its viability. Without these periods, the cell would not be able to reproduce and survive in a competitive environment.

Interphase is the period of time in the life cycle of a cell that follows mitosis and precedes cell division. During this period, active DNA synthesis occurs, as well as other processes necessary to prepare the cell for division. Interphase is an important phase of cell growth and development, as it ensures its growth and renewal.

Interkinesis is an intermediate phase between interphase and mitosis. In this phase, the size of the nucleus and cytoplasm decreases, as well as the accumulation of energy for cell division. Interkinesis lasts from several hours to several days and can be associated with various physiological states of the cell, such as stress, aging, or recovery from injury.

During interphase, DNA replication occurs (copying genetic information in the cell nucleus), which is an important step before cell division. DNA replication occurs in the nucleus, and the process begins with the unwinding of the DNA helix and the formation of two new strands of DNA. Then new DNA strands are synthesized based on existing strands.

In addition, other important processes occur in interphase, such as the synthesis of proteins, lipids and carbohydrates, as well as regulation of the cell cycle. All these processes are necessary to maintain the life of the cell and its growth.

In the human body there are 4 main periods of the physiological cycle of cell development - interphase and 3 phases of division - mitotic (also metaphase), prophase and telophase. These 4 stages make up the life cycle separated by cytokinesis - the period of haploid cell divisibility, that is, one DNA in such cells. These 4 periods refer to the beginning of all 2 types of development. Growth at the interphase stage and growth at subsequent stages of the developmental phase. In the first type of cell development, interphase periods double the 4-fold flow of the intercellular transport medium, delivering metabolites to the entire cell, thereby filling its internal and external structure, after which the developmental phase of this growing cell begins. The interphase period and introduced into the medium while the cell is growing, over time becomes minimal from the 1st moment of its onset. Despite this, it still plays a crucial role in the development and ultimate growth of organisms. Thanks to this long stage, continuous reproduction, development of organ systems, and their growth are carried out.