VARIATION OF NORMAL GERM CELLS. STUDIES IN AGGLUTINATION
نویسندگان
چکیده
منابع مشابه
Transcriptomic Variation during Spermiogenesis in Mouse Germ Cells
To explore variations in the transcription activity during spermiogenesis, round and elongated spermatids were collected from ICR/CD1 model mice using laser capture microdissection (LCM) and cauda epididymal sperm samples. The transcripts were sequenced using RNA-seq, and the reads were mapped to mm9. The majority of the reads (70%) in the round and elongated spermatids were mappable to known a...
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Epigenetics represents a secondary inheritance system that has been poorly investigated in human biology. The objective of this study was to perform a comprehensive analysis of DNA methylation variation between and within the germlines of normal males. First, methylated cytosines were mapped using bisulphite modification-based sequencing in the promoter regions of the following disease genes: p...
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Several lines of evidence have reported that mouse ESCs can successfully differentiate into primordial germ cells (PGC) as well as into mature male and female gametes. Human ESCs and adult stem cells (ASCs) can also differentiate into PGCs. Differentiation of ESCs into germ cells of various stages seems to be a spontaneous and quick process, probably due to the nature of ESCs themselves and the...
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Suggestive evidence for the extragonadal origin of germ cells in birds was first presented by Swift (1914), who described primordial germ cells in the chick embryo at as early a stage as the primitive streak. According to Swift, primordial germ cells are originally located extra-embryonically in the anterior part of the blastoderm and occupy a crescent-shaped region ('germinal crescent') on the...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1929
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1536910