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Human blood normally contains almost no DNA to start with. Red cells do not have nuclei.

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Q: How old can blood be before you can not get DNA from it?
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Before DNA test how was paternity tested?

Blood DNA paternity testing involves retrieving a blood sample from the alleged father, and child. The sample is obtained by pricking the finger and placing the blood droplet on a collection card. The card is sent away for analysis and results are returned in five to seven days!


What is the source of DNA in blood?

Every cell has DNA in it, even blood cells. DNA is an important part of cells, there can't be a cell without DNA.


What is before DNA?

What is DNA replicated before?


Can a woman get a blood test and find out the unborn babys DNA?

No the blood test will determine the DNA of the mother not the DNA of the baby


Which blood cell has DNA?

All groups of white blood cells have DNA. When a blood sample is procured for the isolation of DNA, the white blood cells are the target cells since they have nuclei containing DNA. Red blood cells on the other hand, contain neither nuclei nor DNA


Can DNA get extracted from a sterile cotton pad with blood?

Yes. You can get DNA from sterile cotton pad with blood for DNA finger printing.


What can do to get DNA?

you can get DNA samples from saliva or blood extractions and such


How can blood test be a solution to baby switching?

Blood tests can test for DNA. DNA tests can be used to make sure that the baby's DNA matches the parents' DNA.


Which are the tests which were employed before DNA was established as the rulebook for determining parenthood?

There were tests conducted even before DNA was introduced and these included : Blood typing, Serological testing and HLA testing. Unfortunately however, HLA requires a larger blood sample, preventing the test from being performed on small infants.


Do blood types have to be matched before blood can be transfused?

Yes, blood must be transfused into a body with the same blood type. If blood is transfused into a body with a differing blood type , the body may become ill and fight to kill the differing DNA.


Can DNA evidence be washed away?

There are a few types of DNA. Some of them such as blood can be washed away. This is why its important that if someone is attacked they should go to the hospital before taking a shower. Some such as the DNA in your hair cannot be washed away.


Where can you not get DNA from?

dna isn't found in red blood cells