haploid nucleus

haploid nucleus
a cell nucleus containing half of the number of chromosomes typical of the somatic cells of a particular species.

Medical dictionary. 2011.

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  • haploid — ► ADJECTIVE Genetics ▪ (of a cell or nucleus) having a single set of unpaired chromosomes. Compare with DIPLOID(Cf. ↑diploid) …   English terms dictionary

  • haploid — Describes a nucleus, cell or organism possessing a single set of unpaired chromosomes. Gametes are haploid …   Dictionary of molecular biology

  • haploid — [ haplɔɪd] adjective Genetics (of a cell or nucleus) having a single set of unpaired chromosomes. Compare with diploid. Derivatives haploidy noun …   English new terms dictionary

  • polar nucleus — noun : either of two nuclei that fuse in the center of the embryo sac of a seed plant to form the primary endosperm nucleus * * * Bot. either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus,… …   Useful english dictionary

  • polar nucleus — Bot. either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus, which combines with a male nucleus to form the endosperm. [1880 85] * * * …   Universalium

  • polar nucleus — po′lar nu′cleus n. bot either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus • Etymology: 1880–85 …   From formal English to slang

  • pro-nucleus — Either one of the two haploid gamete nuclei, just prior to their fusion in the fertilized egg …   Glossary of Biotechnology

  • pronucleus — Haploid nucleus resulting from meiosis. In animals the female pronucleus is the nucleus of the ovum before fusion with the male pronucleus. The male pronucleus is the sperm nucleus after it has entered the ovum at fertilization but before fusion… …   Dictionary of molecular biology

  • Pronucleus — A cell nucleus with a haploid set of chromosomes (23 chromosomes in humans) resulting from meiosis (germ cell division). The male pronucleus is the sperm nucleus after it has entered the ovum at fertilization but before fusion with the female… …   Medical dictionary

  • Cyathus helenae — The faint inner plications help distinguish Cyathus helenae from the similar C. striatus Scientific classification Kingdom …   Wikipedia

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