MEROISTIC Meaning and
Definition
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Meroistic is an adjective used in the field of developmental biology to describe a type of oogenesis, which is the process of egg cell formation in animals. In meroistic oogenesis, the ovaries of certain organisms, particularly insects and other invertebrates, produce eggs that have distinct regions called nurse cells or trophocytes. These nurse cells are interconnected with the developing egg cell, known as the oocyte, through cytoplasmic bridges called ring canals.
During oogenesis, the nurse cells play a crucial role in providing essential nutrients, RNA molecules, proteins, and other essential components to the developing oocyte. This transfer of materials occurs through the ring canals, ensuring the proper development and maturation of the oocyte.
Meroistic oogenesis is in contrast to other types of oogenesis such as holoblastic oogenesis, in which the eggs lack nurse cells and instead rely on yolk and other stored nutrients within the oocyte itself. Meroistic oogenesis allows for efficient production of larger eggs, as the oocyte can receive nourishment from multiple nurse cells, increasing the chances of successful embryonic development.
Overall, meroistic refers to the presence of nurse cells and ring canals in the process of oogenesis, facilitating the transfer of essential molecules from the nurse cells to the developing oocyte, ensuring proper egg formation and development.
Common Misspellings for MEROISTIC
Etymology of MEROISTIC
The word "meroistic" is derived from the Greek word "meros" which means "part" or "portion". In scientific terminology, "meroistic" describes a specific type of oogenesis, a process of egg development, where only a portion of the egg cytoplasm is involved in forming the mature egg. This partial involvement of cytoplasmic material gave rise to the use of the term "meroistic" to represent this concept in scientific literature.
Similar spelling words for MEROISTIC
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