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    inactive
    /ɪnˈaktɪv/

    adjective

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  2. 1 day ago · African Americans, also known as Black Americans or Afro-Americans, are an ethnic group consisting of Americans with partial or total ancestry from any of the Black racial groups of Africa. [3] [4] African Americans constitute the third largest racial or ethnic group in the U.S. after White Americans and Hispanic and Latino Americans. [5]

  3. 2 hours ago · DNA methylation is a biological process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription. In mammals, DNA methylation is essential for normal development and is associated with a number of key processes including ...

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