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Which of the following best explains mechanisms by which histones interact with DNA?
A. Histone core proteins interact with the main groove of DNA by the helix-turn-helix-turn-helix motif.
B. Interactions between histone core proteins and DNA happen by positive and negative charge interactions at the minor groove.
C. The N-terminal tails of histone core proteins interacts with the main groove of the DNA double helix.
D. Histone core proteins are covalently bound to the DNA double helix.
Prophase This is the first and longest phase of mitosis .At its beginning all 10 nm segments of chromatids (= chromonemata) of the duplicated chromatin fibres of interph
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