A Question About DNA Tests

[jfall]

I have always wondered what happens if a DNA test is done on a person who has recentely had a blood transfusion.. would this mess up the accuracy in any way? wouldn't you get DNA matches from the regular blood and the forign blood?

 

[jfall]

comon, some one must know

 

[diskop]

Are you looking to commit a crime in the near future?

 

[Alphathree33]

I know that the DNA is chemically separated from the cell that contains it and stretched, pulled (not sure what the proper word would be) outward creating a linear sort of pattern that you might be familiar with from movies.

I suppose one could test the DNA in your hair or your skin to be sure that the transfused DNA was not in it.

Not being a biologist I have no idea what happens to transfused blood - i.e. how long it stays in your system, etc.

 

[Vette73]

Most DNA test are not done by blood, but by swabing the mought and getting skin cells. Some others are Hair, skin, etc...