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Updated: Jul 18, 2026

Genome-wide Snapshot of Chromatin Regulators and States in Xenopus Embryos by ChIP-Seq
Published on: February 26, 2015
A survey of X chromatin in the newborn
Abstract:
Buccal smears were analyzed for X chromatin in 1,000 newborn infants. The mean percentage of X chromatin in the 506 female infants was 39.5 (range 19-61) and in the 494 males 0.13 (range 0-3.0). Evaluation of the data comparing the percentage of X chromatin with caucasian and noncaucasian infants, the weight of the newborn, and the gestation time, indicated no significant differences within the male or female populations. A longitudinal study on 25 female infants for the first 4 days postpartum indicated a significant increase in the percentage of X chromatin in females.
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