Condensation of DNA in the oocyte nucleus into a compact spherical structure called the karyosome.

Catalysis of the reaction: ergosterol + NADP+ = ergosta-5,7,22,24(241)-tetraen-3-beta-ol + NADPH + H+.

The processes involved in preventing uncommitted germ-line stem cells from differentiating as another cell type.

Catalysis of the reaction which results in unsaturation at C-7 in the B ring of sterols.

polar granule organization and biogenesis

polar granule organisation and biogenesis

The assembly and arrangement of polar granules, cytoplasmic, non-membranous RNA/protein complex aggregates in the primordial germ cells of many higher eukaryotes.

Catalysis of the reaction: NADH + a quinone = NAD+ + a quinol.

Catalysis of the introduction of a C-5 double bond in the B ring of ergosterol.

Catalysis of the formation of the C-22(23) double bond in the sterol side chain.

The chemical reactions involving dibenzo-p-dioxin, a substance composed of two benzene rings linked by two ether bonds. Dibenzo-p-dioxins are generated as by-products in the manufacturing of herbicides, insecticides, fungicides, paper pulp bleaching, and in incineration, and can accumulate in milk and throughout the food chain, creating significant health concern.

Interacting selectively with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules) using energy from the hydrolysis of GTP.

Catalysis of the reaction: S-adenosyl-L-methionine + ethanolamine phosphate = S-adenosyl-L-homocysteine + N-methylethanolamine phosphate.

Any of the spindle microtubules that radiate in all directions from the spindle poles and are thought to contribute to the forces that separate the poles and position them in relation to the rest of the cell.

Catalysis of the reaction: S-adenosyl-L-methionine + an amine = S-adenosyl-L-homocysteine + a methylated amine.

Progression through the third stage of prophase I in meiosis, in which crossing over occurs between a chromatid in one partner and another chromatid in the homologous chromosome.