How To Use Spermatocyte In A Sentence
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Then when the heterotypic division takes place and the number of chromosomes is halved, we shall have two spermatocytes with _N_-1 chromosomes from one of the first spermatocytes and one with _N_ and one with _N_-1 from the other.
Hormones and Heredity
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The first breakthrough in the development of insect cell culture was the report of maturation of testicular follicle cells to spermatocytes in a moth in an artificial medium.
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At least 10 spermatocytes at the metaphase I stage were recorded per male.
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Spermatocytes, the progenitors of spermatids, are biosynthetically active cells, producing all the components that will be needed in the mature spermatozoa.
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This latter cell is called the primary spermatocyte.
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Testicular tissue showing spermatogenesis to the level of secondary spermatocytes.
A childless man appeal philonthroists for treatment
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In sexual reproduction, spermatocytes develop from the transformation of choanocytes, and oocytes arise from archeocytes.
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After 5 weeks, oligospemia was observed, and after 10 weeks, testicular atrophy accompanied by the loss of sperm cells and spermatocytes was confirmed.
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To hint 11-sour testosterone main to interfere with normal differentiation development of first spermatocyte, apoptosis second spermatocyte and nematoblast.
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The symbols used are: spermatogonium (white pentagon); primary spermatocytes (white stars); round spermatids (white asterisk); elongated spermatids with high polarization, indicating the residual body or axonemal region (black asterisk) and the heads (white arrowheads).
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In severely degenerated tubules, only spermatogonia and Sertoli cells were observed, and pachytene spermatocytes sloughing into the lumen were observed.
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The normal expression of proto-oncogenes plays an important role in the regulation of spermatogonial mitosis , spermatocyte meiosis as well as spermiogenesis and sperm maturation.
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Lying between, and nurtured by, the Sertoli cells, the primary spermatocytes undergo two meiotic divisions and cellular remodelling to produce mature sperm.
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A primary spermatogonium surrounded by a pair of cyst cells undergoes four mitotic divisions, forming a cyst of 16 primary spermatocytes.
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As daughter cells of spermatogonia, the primary spermatocytes reside just apical to the layer of spermatogonia.
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Objective: To determine the effect of methylbenzene on meiosis of spermatocyte from mouse testis.
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Feeding of freshly irradiated wheat resulted in significantly increased incidence of polyploid cells in bone marrow, aneuploid cells in testis, reduction in number of spermatogonia of types A, B and resting primary spermatocytes as well as a higher mutagenic index.
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