Prophase is a stage of mitosis in which the chromatin condenses into a highly ordered structure called a chromosome (it is at this stage giemsa staining can be applied to elicit G-banding in chromosomes).
Prophase Classical term for the first phase of mitosis or of one of the divisions of meiosis. During this phase the chromosomes condense and become visible. The first stage of meiosis.
prophase preparatory stage of cell division preceding metaphase Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Prophase Presented in the digital fluorescence microscopy image above is a single kangaroo rat (PtK2) kidney cell in the early stages of prophase.
Prophase I The events that occur during prophase of mitosis also occur during prophase I of meiosis. The chromosomes coil up, the nuclear membrane begins to disintegrate, and the centrosomes begin moving apart. ...
Prophase. Chromatin in the nucleus begins to condense and becomes visible in the light microscope as chromosomes. The nuclear membrane dissolves, marking the beginning of prometaphase. Proteins attach to the centromeres creating the kinetochores.
PROPHASE - METAPHASE - ANAPHASE - TELOPHASE - INTERPHASE We suppose it would be good to know what happens during those phases. Always remember - PMATI! ...
prophase - stage of mitosis in which replicated chromosomes condense; nuclear membrane dissociates; centrioles migrate to the poles of the cell. protein - polypeptide chain which serves a structural or enzymatic role or other role in the cell.
Prophase I — a detailed view The lengthy and complex events of prophase I can be broken down into 5 stages. 1. Leptotene ...
Prophase (PRO-faze) The first of six phases of cell division. In prophase, chromosomes condense and become visible and the spindle forms.
prophase [Gk. pro, before + phasis, form] The first stage of mitosis, during which duplicated chromosomes condense from chromatin, and the mitotic spindle forms and begins moving the chromosomes toward the center of the cell. prosimian ...
prophase 1) The ?rst stage of mitosis during which chromosomes condense, the nuclear envelope disappears, and the centrioles divide and migrate to opposite ends of the cell. 2) The first stage of mitosis and meiosis (although in meiosis this ...
Prophase A stage at the beginning of mitosis or meiosis during which the chromosomes condense and become visible. Proto-oncogene A gene which may mutate to become an oncogene.
Prophase first stage of mitosis or meiosis during which the chromosomes shorten‚ thicken‚ and become distinct (and in meiosis they pair up) (pro = before‚ in front of) ...
Prophase Strasburger (1884) originally introduced this term for the early stage of nuclear division before (Gk. pro) the chromosomes divide into two chromatids, but from about 1905, ...
Prophase: During this first mitotic stage, the nucleolus fades and chromatin (replicated DNA and associated proteins) condenses into chromosomes. Each replicated chromosome comprises two chromatids, both with the same genetic information.
Prophase I has a unique event -- the pairing (by an as yet undiscovered mechanism) of homologous chromosomes. Synapsis is the process of linking of the replicated homologous chromosomes.
prophase The stage of mitosis during which the chromosomes become visible under a light microscope. The first stage of mitosis during which the chromosomes are condensed but not yet attached to a mitotic spindle.
Prophase."The nuclear network of chromatin filaments assumes the form of a twisted skein or spirem, while the nuclear membrane and nucleolus disappear.
During the prophase of mitosis, the centrosomes migrate to opposite poles of the cell. Between them is formed the spindle, a bundle of microtubules that will function later as the foundation for cell division.
During the prophase of meiosis I, homologous chromosomes pair and form synapses. The paired chromosomes are called bivalents. The bivalent has two chromosomes and four chromatids, with one chromosome coming from each parent.
The beginning of mitosis is called prophase. During prophase, the chromosomes begin to coil more tightly and, as a consequence of the coiling, ...
The term coined by Häcker (1897) for the stage of late prophase 1 of meiosis when the chromosomes are well separated from one another (Gk. kinesis, movement; dia, apart).
The third stage in prophase 1 of meiosis in which there is further shortening and thickening of the bivalents. The chromosomes split into chromatids, allowing crossing over to occur and hence the formation of chiasmata.
MPF - maturation/mitosis promoting factor - heterodimeric protein that initiates prophase of mitosis and alters the activity of diverse proteins that function in mitosis by phosphorylation; ...
A process of cell division in eukaryotic cells conventionally divided into the growth period (interphase) and four stages: prophase, metaphase, anaphase, and telophase.
Synapsis. The pairing of homologous chromosome pairs during prophase of the first meiotic division, when crossing over occurs. T ...
Prophase - phase of mitosis in which the chromatin duplicates itself and thickens into chromosomes, the spindle fibers form, and the nuclear membrane disintegrates ...
The pairing of homologous chromosome pairs during prophase of the first meiotic division, when crossing over occurs. T Taq polymerase. A heat-stable DNA polymerase isolated from the bacterium Therrnus aquaticus, used in PCR.
See also: Chromosome, Cell, Chromosomes, Mitosis, Cells
|