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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.
Serogroups Five major serogroups of N. meningitidis, A, B, C, Y and W-135, cause most human infection. Serogroup A is the leading cause of disease in the "meningitis belt" acr
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Main successful vaccines are live attenuated and heat killed vaccines.
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Q. How are the male gametes of gymnosperms formed? What is the relationship between the pollen grains and the concept of alternation of generations? In the male strobiles (cone
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