Examlex
Which of the following does not assist the kidneys in excretion of nitrogenous wastes?
Methylation
The addition of a methyl group to a molecule, often DNA, affecting gene expression without changing the DNA sequence.
Acetyl Group
A chemical group derived from acetic acid, with the formula CH3CO, important in various biological processes including metabolism.
Histone Proteins
Proteins that package and order DNA into structural units called nucleosomes, playing a key role in gene regulation.
Eusocial
Describes a complex social structure in certain species, where there is a division of labor between reproductive and non-reproductive individuals, cooperative care of young, and overlapping generations.
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