All of the following are epigenetic mechanisms, EXCEPT . changing gene expression by changing the nucleotide sequence through mutation changing gene expression by adding and removing methyl groups to DNA changing gene expression by the use of small noncoding RNAs changing gene expression by adding and removing chemical groups to histone proteins changing gene expression by the use of long noncoding RNAs

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.