• gene
  • The Y chromosome, which is thought to carry the male determining gene, was isolated by UV laser microdissection and amplified by degenerate oligonucleotide-primed PCR. (oup.com)
  • Further studies are now needed to investigate how chromosome morphology relates to its gene content, and whether the changes in size were driven by selection. (royalsocietypublishing.org)
  • To further study the roles of partial AZFc deletions in spermatogenic impairment and the relationship between complete and partial AZFc deletions, we typed these deletions, did quantitative analysis of DAZ gene copies, and performed Y chromosome haplogrouping in seven pedigrees of complete AZFc deletion carriers, 296 infertile and 280 healthy men in Chinese. (bmj.com)
  • sequence
  • A repetitive sequence in the microdissected Y chromosome, RMY1, was isolated while screening repetitive sequences in the amplified Y chromosome. (oup.com)
  • Part of the nucleotide sequence shared a similarity to that of X-43.1, which was isolated from microdissected X chromosomes. (oup.com)
  • Since fluorescence in situ hybridization analysis with RMY1 demonstrated that RMY1 was localized at the ends of the chromosome, RMY1 may be a subtelomeric repetitive sequence. (oup.com)
  • spatial
  • In particular, females with Turner's syndrome (TS) who have only one X-chromosome exhibit deficits of spatial ability whereas males with Klinefelter's syndrome (KS) who possess a supernumerary X-chromosome are delayed in acquiring words. (ox.ac.uk)
  • Among
  • It is likely that other divergent lineages will be found, whether in Africa or among African-Americans in the U.S. and that some of these may further increase the age of the Y chromosome tree," he added. (archaeology.org)
  • clear
  • It is also clear that superimposed on the maternal meiotic chromosome segregation errors, there are a large number of mitotic errors taking place post-zygotically during the first few cell divisions in the embryo. (warwick.ac.uk)
  • probably
  • The Y-chromosome is an extreme outlier compared to modern groups, probably because of its heavy G2a domination, whereas the mtDNA from Treilles appears just like a normal and unexceptional Mediterranean-type population. (blogspot.nl)
  • On the contrary, the length of the W chromosome can fluctuate over short time scales, probably involving both shortening and elongation of non-coding regions. (royalsocietypublishing.org)