Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Transformation of a spermatid into a spermatozoon.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biology The final stage of
spermatogenesis . It involves the maturation of thespermatids intospermatozoa .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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In the final step, spermiogenesis, the DNA coils in the sperm's head.
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• It includes the 1st + 2nd meiotic division + spermiogenesis.
Recently Uploaded Slideshows saktivinayaga 2010
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We discussed spermatogenesis -- how we got from a diploid spermatogonial stem cell to a haploid spermatid -- and then spermiogenesis -- the process by which the spermatids acquire the features of spermatozoa: tails, acrosomes and the like.
ScienceBlogs Channel : Life Science Scicurious none@example.com 2010
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The association of AQP11 with the residual cytoplasm of elongated spermatids and the distal tail of spermatozoa supports the hypothesis of more than just a role in conferring water permeability and also in the turnover and recycling of surplus cellular components made redundant during spermiogenesis and spermiation.
Naturejobs - All Jobs Ching-Hei Yeung 2010
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The team had already zeroed in on the Jhdm2a enzyme, showing in a 2007 Nature publication that the Jhdm2a gene is highly expressed in mouse testes and plays an important role in spermiogenesis, the final step in the production of a functional sperm cell.
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"One is control of spermiogenesis; the other is control of metabolism."
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This finding indicates that CatSper has no required role in the prior developmental events that determine the assembly of an asymmetry-competent flagellum during spermiogenesis, or in downstream signaling events that couple Ca
PLoS ONE Alerts: New Articles Anne E. Carlson et al. 2009
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