The definition of a point mutation states that a mutations is a point mutation if it affects only one or few nucleotides in the DNA product. We have that DNA is read in frames of 3 nucleotides. If the starting point of one frame is changed, then all frames are changed because the frames are grouped by 3 nucleotides. We have that frameshift mutations not point mutations because a shift in the reading frame affects how the rest of the DNA is read. This is the case for insertion and deletion of a nucleotide; it changes the number of nucleotides and shifts the reading frame by 1. A missense mutation is a point mutation though; it involves substituting a nucleotide with a wrong one. It involves an error only in one place and it does not change the reading frame so it affects only one nucleotide.
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Fasciae are layers of connective tissue, mainly collagen, situated under the skin, which closes, supports, and separates muscles and other structures. Fasciae are grouped by their anatomical location, layer (as visceral fascia, superficial fascia, and deep fascia), or by their functions. Fasciae reduces friction and provide an adjustable covering for nerves and blood vessels as they move through muscles.
