It would be substitution because an incorrect base pair is being replaced.... hopefully thats right?
False this could only happen if the pathologist or anthropologist was there at the time of death
From the question, we now that HIJ is exactly the same as MNO
Which mean that the length of OM will be exactly the same as the length of JH
Which means OM = JH = 11
Hope this helps
Gas-liquid hope this helps :)