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 m
RNA 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 >>>nucleusAn
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 BiologyO ...
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 >>>'"/>