X chromosome sex chromosome
1.X chromosome was the second largest submetacentric chromosome and Y was the smallest acrocentric chromosome in 1 pair sex chromosome.
2.Heterogametic sex The sex with dissimilar sex chromosomes, one (in mammals the Y chromosome)being shorter than the other(the X chromosome).
3.concerning characteristics that are determined by genes carried on the sex chromosomes (on the X chromosome in particular).
4.Chromosomal prepartions made from peripheral blood lymphocytes were analysed with conventional GTG and CBG banding techniques. We found 16 patients showed numerical structural abnormalities of sex chromosome (32.0%):2 subjects With del(Y)(q11),1 with a large Y(Y+),6 with47,XXY,4 with 47,XXY/46,XY,2 with 46,XY/45,X and 1 with 46,XX.
