profase

profase

The first phase of cell nucleus division, in which the chromosomes become visible, the cell nucleus starts to lose its identity, the mitotic spindle apparatus appears, and the centrioles migrate toward opposite poles.

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Del af tale: noun
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Branche/domæne: Agriculture
Category: General agriculture
Company: USDA
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profase I

Archaeology; Human evolution

The first stage of meiosis. There are several stages of phophase I, including leptonema, zygonema, pachynema, diplonema, and diakinesis.

profase II

Archaeology; Human evolution

The second stage of meiosis during which there is chromosome contraction.

antihelmínticos

Agriculture; General agriculture

Agents destructive to parasitic worms. They are used therapeutically in the treatment of infestation with parasitic worms of the helminth class, in humans and animal.

antígenos de superficie

Agriculture; General agriculture

Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls.

antígenos de neoplasias

Agriculture; General agriculture

Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral ...

antígenos de histocompatibilidad

Agriculture; General agriculture

A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They ...

antígeno nuclear de célula proliferativa

Agriculture; General agriculture

Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the ...