[Q]: Sentence: The manner in which DNA is stored on the histones, as well as chemical modifications of the histone itself, regulate whether a particular region of DNA is accessible for gene expression. Question: What does the manner of DNA storage on the histone and the chemical modifications of the histone itself regulate?
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[A]: yes

[Q]: Sentence: In Sri Lanka, the Supreme Court of Sri Lanka was created in 1972 after the adoption of a new Constitution. Question: The Sri Lankan Supreme Court's decisions override what?
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[A]: no

[Q]: Sentence: As the LaserDisc format is not digitally encoded and does not make use of compression techniques, it is immune to video macroblocking (most visible as blockiness during high motion sequences) or contrast banding (subtle visible lines in gradient areas, such as out-of-focus backgrounds, skies, or light casts from spotlights) that can be caused by the MPEG-2 encoding process as video is prepared for DVD. Question: What is contrast banding?
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[A]:
yes