nuclear envelope
noun
The double-layered membrane surrounding the nucleus of a eukaryotic cell, separating the contents of the nucleus from the cytosol (cytoplasm).
The Nuclear Envelope
The nuclear envelope is a double-layered membrane that encloses the contents of the nucleus during most of the cell's lifecycle.
Nuclear envelope and pores
Main articles: Nuclear envelope and Nuclear pores ...
nuclear envelope
[L. nucleus, a kernel]
The membrane in eukaryotes that encloses the nucleus, separating it from the cytoplasm.
nucleic acid ...
Nuclear envelope A barrier that encloses the nucleus and is made up of two membranes perforated by nuclear pores.
Nuclear envelope A double membrane, consisting of the inner nuclear membrane and the outer nuclear membrane, that surrounds the nucleus and is punctured with openings called nuclear pores.
Nuclear envelopes may reform, or the cell may quickly start meiosis II.
Cytokinesis
Analogous to mitosis where two complete daughter cells form.
nuclear envelope Double membrane forming the surface boundary of a eukaryotic nucleus; consists of outer and inner membranes perforated by nuclear pores.
The nuclear envelope disintegrates because of the dissolution of the lamins that stabilize its inner membrane.
A protein structure, the kinetochore, appears at the centromere of each chromatid.
The nuclear envelope reforms and nucleoli reappear.
This stage is absent in some species.
Interkinesis ...
The nuclear envelope, shown in Figure 8, is a double-membrane structure. Numerous pores occur in the envelope, allowing RNA and other chemicals to pass, but the DNA not to pass.
Gamete (1N): NUCLEAR ENVELOPES form and chromosomes disperse as CHROMATIN. Meiosis has produced 4 DAUGHTER CELLS, each with 1N chromosomes and 1N DNA. Later, in fertilization, male and female 1N gametes will fuse to form a 2N ZYGOTE.
During Prophase II, nuclear envelopes (if they formed during Telophase I) dissolve, and spindle fibers reform. All else is as in Prophase of mitosis. Indeed Meiosis II is very similar to mitosis.
Extracts from handisolated nuclear envelopes from frog oocytes were tested for the specific DNAbinding activity to (T2G4)116. A fragment of Tetrahymena telomere from a YAC plasmid was used as a labelled probe in a gelshift assay.
The nuclear envelope is the membrane around the nucleus of the cell.
The endoplasmic reticulum is a synthesis and transport organelle [the endoplasmic reticulum is an extension of the nuclear envelope].
The nuclear envelope surrounds the nucleus and all of its contents. The nuclear envelope is a membrane similar to the cell membrane around the whole cell.
The largest, most prominent organelle in eukaryotic cells, the nucleus is a round or oval body that is surrounded by the nuclear envelope and contains the genetic information necessary for control of cell structure and function.
Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope. Centrioles play a role in organizing microtubules that serve as the cell's skeletal system.
Separated from the cytoplasm by a nuclear envelope
The envelope is made of a double membrane containing small holes
These small holes are called nuclear pores (100nm)
Nuclear pores allow the transport of proteins into the nucleus ...
Eukaryote: Organism whose cells have (1) chromosomes with nucleosomal structure and are separated from the cytoplasm by a two-membrane nuclear envelope, and (2) compartmentalization of functions in distinct cytoplasmic organelles.
 See also: Cell, Cells, Membrane, Organ, Protein
  
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