QuizMe

		The presence of two copies of each chromosome
		A chromatin state marked by both activating and repressive histone modifications
		The pairing of maternal and paternal alleles
		The process of silencing both X chromosomes in female embryos
		The duplication of gene regulatory sequences

		The presence of two copies of each chromosome
		A chromatin state marked by both activating and repressive histone modifications
		The pairing of maternal and paternal alleles
		The process of silencing both X chromosomes in female embryos
		The duplication of gene regulatory sequences

		The presence of two copies of each chromosome
		A chromatin state marked by both activating and repressive histone modifications
		The pairing of maternal and paternal alleles
		The process of silencing both X chromosomes in female embryos
		The duplication of gene regulatory sequences

Which of the following best describes bivalency in embryonic stem cells?