[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? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: According to 2004 figures, Southampton contributes around 4.2 bn to the regional economy annually. Question: Going by 2004 calculations, how much does Southampton contribute to the region's economy each year? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: The production for sulfidic zinc ores produces large amounts of sulfur dioxide and cadmium vapor. Question: Large amounts of sulfur dioxide and cadmium vapor are produced due to what? OPTIONS:
- yes
- no
++++++++++
[A]:
yes