2019 · Q86
Which one of the following statements regarding histone proteins is correct?
General KnowledgeBiology
- AHistones are proteins that are present in mitochondria an membrane.
- BHistones are proteins that are present in nucleus in association with DNA.
- CHistones are proteins associated with lipids in the cytosol.
- DHistones are proteins associated with carbohydrates in the cytosol.
Explanation
Histones are basic nuclear proteins around which DNA winds to form nucleosomes, the repeating units of chromatin. They are found in the nucleus in association with DNA, not in mitochondria, the cytosol, or with lipids or carbohydrates. Hence option B is correct.