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单词 spermatid
释义

spermatid

/ˈspəːmətɪd /
noun Biology
An immature male sex cell formed from a spermatocyte, which may develop into a spermatozoon without further division.These haploid cells - now called spermatids - thus contain 23 single half chromosomes....
  • Rates of protein evolution were fastest for genes expressed during the dramatic morphogenesis of round spermatids into spermatozoa.
  • Spermatocytes, the progenitors of spermatids, are biosynthetically active cells, producing all the components that will be needed in the mature spermatozoa.

Derivatives

spermatidal

/ˌspəːməˈtʌɪd(ə)l/ adjective ...
  • Two novel zinc fingers have been discovered in the mammalian spermatidal protein TP2, which recognizes human CpG islands in a zinc dependent manner.
  • Rat spermatidal protein TP2 is rich in serine residues and has several potential sites for phosphorylation by different protein kinases.
  • Possible functions for high HMGA2 levels may include role in testis-specific events such as genetic recombination, meiotic divisions, or replacement of histones by late spermatidal basic proteins during nuclear condensation.
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更新时间:2025/1/12 0:21:52