Now as to some of the ties, they will need to show that they have significant close family at home, property not easily sold, and a good job for a good company that they have had for awhile that a person would not normally abandon. So if the person is young, without much money or any property, they could be denied.
A mutation can occur anywhere in the body in a cellular level, but mainly if it is a disease, such as a hereditary one, it is usually in the DNA.
An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand slips, or wrinkles, which allows the extra nucleotide to be incorporated (Figure 2). Strand slippage can also lead to deletion mutations.