Pl help Write what the mRNA sequence would be if the second DNA letter in the sequence above
was deleted.

Changes to short stretches of nucleotides are called gene-level mutations, because ... A deletion mutation occurs when a wrinkle forms on the DNA template strand and ... sequence with a different set of reading frames is transcribed to mRNA (b). ... can also lead to another type of mutation known as a frameshift mutation

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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.