highly significantP < 0.001
A contingency test revealed a highly significant association between type of disc morphology and X chromosome zygosity level (χ 2 = 28.69, df = 1, P < 0.001).
A contingency test revealed a highly significant association between type of disc morphology and X chromosome zygosity level (χ 2 = 28.69, df = 1, P < 0.001).