<prompt> Barr body is not present in female having- PGMEE 2012-1346 XX genome45 XO genome47 XXXAll of the above  <response>: In Turner syndrome 45, XO,one of the X-chromosome is missing in a female. This is the most lethal karyotype. It is only monosomy of sex chromosome in humans. There are 45 chromosomes instead of 46 in a normal individual. Phenotype Genotype Barr bodies Normal Male XY 0 Normal Normal Female XX 1 Normal Turner Syndrome X0 0 Female with no Barr Body Klinfelter Syndrome XXY 1 Male with Barr Body Super Female XXX 2 Female with two Barr Bodies No. of Barr bodies no. of x chromosome - 1 Since in XO genotype there is 1 x chromosome. Therefore, no. of barr bodies is 1-10 