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.
I am not completely sure about this one, but I found on the Internet that what is a condition required for the Hardy-Weinberg principle to be in effect is A) random mating occurs.
The external structures of the prokaryotic cell include a plasma membrane, cell wall, and capsule (or slime layer).
Isotopes
The answer has to be 20 characters long so this is irrelevant.
This is because you have to let your food digest a bit before continuing your work out to prevent cramps and this like that.
