X-Chromosome Inactivation Makes up to possess Variations in Gene Dosage
Men and women genomes along with disagree regarding the most other sex chromosome, new X-chromosome, because lady has actually twice brand new amount from X-chromosomelinked genes one men enjoys. The brand new X-chromosome include just as much as 160 mil foot sets away from DNA (on 5 % of the total haploid genome) and you may encodes a projected 1,000 to help you dos,000 genes (Shape dos–2). Because of the character regarding X-chromosome-connected patterns regarding genetics, females are possibly homozygous or heterozygous getting X-chromosome-connected traits, whereas men, because they only have one X-chromosome, was hemizygous.