Navigation Links
Nuclear membrane


nuclear membrane -- The double membrane which surrounds the eukaryotic nucleus. It has many pores in its surface which regulate the flow of large compounds into and out of the nucleus.
Full article >>>

nuclear membrane The membrane surrounding the nucleus of eucaryotic cells.
nuclear pores Pitted regions in the nuclear envelope through which processed mRNA migrates to the ribosomes.
Full article >>>

The nuclear membrane also disappears, revealing tightly wrapped chromosomes in the form of the afore-mentioned sister chromatids, as well as the centrioles at opposite poles of the nucleus, anchoring the chromatids in preparation for metaphase, ...
Full article >>>

The nuclear membrane reappears.
The chromosomes uncoil.
The spindle apparatus breaks down.
The cell divides into two.
Full article >>>

Bacteria lack a nuclear membrane and membrane-bound organelles. Biochemical processes that normally occur in a choloroplast or mitochondrion of eukaryotes will take place in the cytoplasm of prokaryotes.
Full article >>>

Prokaryotes are distinguished from eukaryotes on the basis of nuclear organization, specifically their lack of a nuclear membrane. Prokaryotes also lack any of the intracellular organelles and structures that are characteristic of eukaryotic cells.
Full article >>>

An organism lacking a nuclear membrane and certain organelles such as mitochondria. Refers to both Bacteria and Archae. This term was used synonymously with bacteria before the differences between Bacteria and Archae were understood.
Full article >>>

Telomere ends gather on the nuclear membrane during meiosis, resulting in a morphologically observable chromosome configuration called a bouquet. Bouquet formation occurs at different stages of meiosis in different organisms.
Full article >>>

Telophase
a new set of nucleolus forms along with the nuclear membrane as well as the nucleolus
the cell plate appears and begins to slip in two while the spindle fibers fade and the chromosomes uncoil so the cell can make proteins.
Full article >>>

prophase: the first phase of mitosis; involves chromosomal condensation, nuclear membrane breakdown, and the migration of centrioles to opposite poles.
prophase I: the first phase of meiotic division, during which crossing over takes place.
Full article >>>

An extensive membranous network in eukaryotic cells, continuous with the outer nuclear membrane and composed of ribosome-studded (rough) and ribosome-free (smooth) regions.
endorphin ...
Full article >>>

nucleus
An organelle of eukaryotic cells that is bounded by a nuclear membrane and contains the chromosomes whose genes control the structure of proteins within the cell.
Covered in: Lab 3 Cell Biology
O ...
Full article >>>

the early phase of cell division from the time the chromosomes first become visible to the beginning of metaphase, when the nuclear membrane disappears and the chromosomes maximally condensed ...
Full article >>>

Researchers at Case Western Reserve University and Copernicus Therapeutics are able to create tiny liposomes 25 nanometers across that can carry therapeutic DNA through pores in the nuclear membrane.
Full article >>>

[Gr. dia - apart; Gr. kinesis - movement]. The last stage of prophase 1 of meiosis, leading to metaphase of the first meiotic division. The chromosomes are at maximum condensation and the nuclear membrane breaks down.
Full article >>>

The last stage (Gk. telos, end) of mitosis, or of either division of meiosis, during which the chromosomes become progressively thinner and more elongated (Heidenhain, 1894). Telophase is said to begin with the formation of a nuclear membrane round ...
Full article >>>

Whereas in the case of the bacteria, the other form of life it is the case that there, they have no nuclear membrane containing the genes, as the eukaryotes do. Nevertheless, they have genes. It's just that they're not enclosed in a bag.
Full article >>>

nucleoplasm The aqueous portion of a cell's contents enclosed by the nuclear membrane; also called the nuclear matrix. nucleoside A compound consisting of a purine or pyrimidine base covalently linked to a pentose, but lacking a phosphate.
Full article >>>


'"/>


See more about: Nuclear membrane

TAG: Nuclear membrane
Other biology dictionary
(Date:5/15/2008)...that high school biology students can recite that ...essenger RNA (mRNA), which is then translated into...nding studentsand many scientistsscrambling for up... Biological Studies investigator Joseph Ecker, Ph....evelopmental Cell, shows that the RNA world is mor...
(Date:5/15/2008)...actice usually reserved for boosting profits be us...energy use? Writing in the International Journal o...searchers in India provide an answer. , Accordin...ollege of Engineering in Haryana, India, and colle...ont of company efforts. In a global economy with e...
(Date:5/14/2008)... of physical and biological systems across the ear...ed by humans, says a new analysis of information n...ts on living things include earlier leafing of tre...ies to higher latitudes and altitudes in the north...pe, North America and Australia; and shifting of t...
(Date:5/14/2008)...Ann F. Jacobson, associate professor in Kent State...le may initially choose to postpone but ultimately...izes the need for better patient education before ...to better understand patients pre-and post operati..., says Jacobson. These patients perspectives have ...
Breaking Biology News(10 mins):Plant biologists discover unexpected proteins affecting small RNAs 2Plant biologists discover unexpected proteins affecting small RNAs 3Adding up business and energy 2Warming climate is changing life on global scale, says new study 2Research examines factors in delaying or declining total knee replacement surgery 2Pure 26 Natural 3A Introducing an Effective Healthy Approach to Personal Care and Beyond 2490 1Pure 26 Natural 3A Introducing an Effective Healthy Approach to Personal Care and Beyond 2490 2Pure 26 Natural 3A Introducing an Effective Healthy Approach to Personal Care and Beyond 2490 3Wedgewood Pharmacy and Midwest Veterinary Supply Sign New Agency Agreement 2485 1Wedgewood Pharmacy and Midwest Veterinary Supply Sign New Agency Agreement 2485 2Wedgewood Pharmacy and Midwest Veterinary Supply Sign New Agency Agreement 2485 3Eckert Seamans Announces Major Expansion in Philadelphia West Chester and Harrisburg 2480 1Eckert Seamans Announces Major Expansion in Philadelphia West Chester and Harrisburg 2480 2Eckert Seamans Announces Major Expansion in Philadelphia West Chester and Harrisburg 2480 3Ann Taylor Launches ANN Cares Card to Support Fight Against Breast Cancer 2478 1Ann Taylor Launches ANN Cares Card to Support Fight Against Breast Cancer 2478 2
...ic doxycycline effectively treats a type of lympho...to a study in the October 4 issue of the Journal...xal lymphoma of the MALT-type (OAL) is a kind of c...t often fatal, but its symptoms can compromise a p...ted an association between OAL and infection with ...
...the Consejo Superior de Investigaciones Científica...ort of proteins in plant cells, a discovery that w...ctories. Amongst other applications, these can be ...gested, will be able to immunise against diseases....sign of protein-manufacturing plants of great inte...
... that a new male contraceptive is "five to ten yea...er may finally be "yes." This week marked the ann... A door opens , Researchers in Italy and at th...breakthrough on a non-hormonal compound known as A...e compound as an attachment to a modified hormone ...
...f life--large, small, and microscopic. Bacteriopha...ndles that alter microorganisms, genetic material ...nd parasitism. Despite their small size, they are ...n a bucket full of seawater as there are humans on...act ecologically. , In a new study published onli...
Other Biology News:Vaccine-producing 'plant-factories' 2Male contraception: One door opens, another closes 2Male contraception: One door opens, another closes 3Hundreds of thousands of viral species present in the world's oceans 2