• Thumbnail for Spermatozoon
    Spermatozoon (redirect from Spermatozoid)
    A spermatozoon (/spərˌmætəˈzoʊ.ən, ˌspɜːrmətə-/; also spelled spermatozoön; pl.: spermatozoa; from Ancient Greek σπέρμα (spérma) 'seed', and ζῷον (zôion) 'animal')...
    34 KB (3,959 words) - 13:04, 2 June 2024
  • Thumbnail for Plant cell
    PMID 11743094. Manton, I; Clarke, B (1952). "An electron microscope study of the spermatozoid of Sphagnum". Journal of Experimental Botany. 3 (3): 265–275. doi:10...
    19 KB (2,224 words) - 04:45, 3 January 2024
  • Thumbnail for Hirase Sakugorō
    Fukui, Hirase discovered the spermatozoids of the ginkgo in January 1894, before Seiichiro Ikeno discovered the spermatozoids of the cycad. He is a laureate...
    2 KB (236 words) - 15:13, 15 June 2024
  • Thumbnail for University of Tokyo
    It was in this garden that in 1894 Hirase Sakugoro the discovered spermatozoids of the ginkgo, proving that gymnosperms produce sperm cells. The garden...
    133 KB (10,830 words) - 14:21, 12 July 2024
  • Thumbnail for Spermatogenesis
    spermatidogenesis (meiosis II) four spermatids haploid (N) / 23 C / 23 spermiogenesis four functional spermatozoids haploid (N) / 23 C / 23 spermiation...
    33 KB (3,731 words) - 23:24, 11 June 2024
  • Thumbnail for Hemiptera
    Carayon, J. 1959 Insémination par "spermalège" et cordon conducteur de spermatozoids chez Stricticimex brevispinosus Usinger (Heteroptera, Cimicidae). Rev...
    65 KB (6,522 words) - 19:34, 10 July 2024
  • Thumbnail for Gamete
    PE, Tsai CW (June 2000). "Control of development and motility in the spermatozoids of lower plants". Gravitational and Space Biology Bulletin. 13 (2):...
    12 KB (1,360 words) - 10:44, 6 June 2024
  • Thumbnail for Ginkgo biloba
    ISBN 978-90-5702-488-7. Ogura, Y. (1967). "History of Discovery of Spermatozoids In Ginkgo biloba and Cycas revoluta". Phytomorphology. 17: 109–114....
    65 KB (6,996 words) - 12:21, 1 July 2024
  • Thumbnail for Spermatocyte
    hours spermatids male gametid haploid (N) / 23 1C / 23 spermiogenesis 24 days spermatozoids sperm haploid (N) / 23 1C / 23 spermiation 64 days (total)...
    19 KB (2,091 words) - 17:57, 23 March 2024
  • Thumbnail for Symbiogenesis
    is a combination of two factors: contribution of new symbionts by the spermatozoid and reduction division. That is fertilization. (b) A single factor exists:...
    70 KB (7,517 words) - 19:12, 17 July 2024
  • Thumbnail for Assisted reproductive technology
    Medicine in Brussels. Actually, the discovery was made by a mistake when a spermatozoid was put into the cytoplasm. Wikimedia Commons has media related to Assisted...
    48 KB (5,487 words) - 14:45, 16 July 2024
  • Thumbnail for Alternation of generations
    eggs (ova), and smaller motile microgametes are sperm (spermatozoa, spermatozoids). The degree of motility of the sperm may be very limited (as in the...
    40 KB (4,579 words) - 05:27, 4 May 2024
  • Thumbnail for Chiton
    aesthetes, girdle, radula, gills, glands, egg hull projections, and spermatozoids. It includes all the living and extinct genera of chitons. Further resolution...
    50 KB (4,837 words) - 16:25, 10 July 2024
  • Thumbnail for Cimex
    Carayon, J. 1959 Insémination par "spermalège" et cordon conducteur de spermatozoids chez Stricticimex brevispinosus Usinger (Heteroptera, Cimicidae). Rev...
    36 KB (4,174 words) - 19:00, 3 July 2024
  • Thumbnail for Microbotics
    applications. Various microorganisms, including bacteria, microalgae, and spermatozoids, have been utilised to fabricate different biohybrid microswimmers with...
    29 KB (4,193 words) - 19:19, 28 June 2024
  • Thumbnail for Batrachospermum
    associated with photoperiodism. Gametophytes produce male gametes – spermatozoids and female gametes – carpogonia (which are essentially identical to...
    31 KB (3,183 words) - 03:33, 12 May 2024
  • of each of these groups are large and multi-flagellated. The mature spermatozoids of the fern Asplenium onopteris are 8 to 8.5 micrometers in length and...
    14 KB (1,763 words) - 02:27, 7 March 2024
  • Thumbnail for Oedogonium
    Dispermatozoideae. These sections were based on the different number of spermatozoids the antheridial (male sex organ containing) cell expresses. This classification...
    64 KB (6,295 words) - 04:35, 3 March 2024
  • clinic, instigating in the genetic analysis of embryos, ovules and spermatozoids. The same year, the first baby was born after the adoption of an embryo...
    3 KB (282 words) - 22:13, 22 February 2024
  • Thumbnail for Phlorotannin
    cell wall and perhaps avoiding multiple fertilization by inhibiting spermatozoid movement. According to the Carbon Nutrient Balance Model, phlorotannins...
    25 KB (2,750 words) - 12:37, 11 July 2024
  • centrality of a condom in the design and the surrounding "halo of hearts and spermatozoids" made the design controversial, and he withdrew his design from the...
    11 KB (1,273 words) - 02:15, 15 July 2024
  • Thumbnail for Nicolaas Hartsoeker
    priority dispute between Hartsoeker and Leeuwenhoek over the discovery of spermatozoids. In 1677, Hartsoeker met Christiaan Huygens and initiated him in the...
    8 KB (694 words) - 08:35, 9 February 2024
  • Tenerife; their vegetation. Die Spermatozoiden im Pflanzenreich, 1864 – The spermatozoid in the plant kingdom. The standard author abbreviation Schacht is used...
    3 KB (340 words) - 15:26, 22 June 2024
  • Thumbnail for Irene Manton
    Manton, I., Clarke, B. (1952) "An electron microscopic study of the spermatozoid of Sphagnum." J Exp. Botany, Vol 3, pp 265- DOI: 10.1093/jxb/3.3.265...
    19 KB (1,776 words) - 06:45, 12 March 2024
  • Thumbnail for Diuronotus aspetos
    the homogeneous ultrastructure of the scales. Some characters of the spermatozoids like the presence of supernumerary membranes also justify a close relationship...
    6 KB (698 words) - 20:00, 10 November 2022
  • 129–134. Raven Press, New York. Brokaw, C.J. (1958) Chemotaxis of bracken spermatozoids. The role of bimalate ions. J. Exp. Zool. 35, 192–196. Zatylny, C.,...
    29 KB (3,524 words) - 17:01, 4 January 2024
  • Thumbnail for Macrozamia riedlei
    the weight has been recorded up to 14 kilograms (31 lb); the eggs and spermatozoids are visible to the naked eye. The cones persist on the plant for many...
    20 KB (2,332 words) - 11:24, 20 February 2024
  • Thumbnail for Polyphlebium venosum
    a simple wall and an operculum which is raised or shed to allow the spermatozoids to escape. The archegonia, with straight necks and tiers of four to...
    8 KB (968 words) - 08:00, 15 January 2024
  • Thumbnail for Dalmiro Sáenz
    humor, which were very successful. Among them stands out "I Also Was A Spermatozoid" published by the editorial Torres Agüero. Then began an intimate and...
    6 KB (985 words) - 03:28, 11 March 2024
  • 1873–1877) and received a gold medal for his work “On Development of Spermatozoids of Vertebrates”. After graduation he stayed at the institute for a degree...
    4 KB (384 words) - 18:12, 3 November 2023