cromatina sexual

cromatina sexual

In the interphase nucleus, a condensed mass of chromatin representing an inactivated X chromosome. Each X chromosome, in excess of one, forms sex chromatin (Barr body) in the mammalian nucleus.

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Industry/Domain: Agriculture
Category: General agriculture
Company: USDA
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cromatina

Biology; Ecology

The combination of DNA and the structural proteins (histones) it wraps around in the cell nucleus. Chromosomes are made out of chromatin.

cromatina

Health care; Hematology

La parte del núcleo de la célula que más se tiñe y que contiene material genético.

cromatina

Biology; General

A complex of DNA and protein in eukaryotic cells that is dispersed throughout the nucleus during interphase and condensed into chromosomes during meiosis and mitosis.

cromatina

Archaeology; Human evolution

The piece of DNA-protein complex that is studied and analyzed. Each chromatin fragment reflects the general features of chromosomes but not the specifics of any individual ...

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 ...