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DNA tests are used because they are more exact than blood tests. Many people can have the same blood type and cross types. Every person has individual DNA, except identical twins.

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15y ago

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Is there a blood test to find out your nationality?

No, there is no blood test that can determine your nationality. Nationality is usually determined by factors such as birthplace, citizenship, and ancestry, rather than by a blood test.


Where do you get the blood test for Indian heritage?

You can get a DNA test from companies like AncestryDNA or 23andMe to determine your genetic heritage, including Indian ancestry. These tests typically involve providing a saliva sample rather than a blood sample.


Can you still have arthritis if the blood test shows no sgn of it?

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What are blood type kits and what do they do?

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Why would you use a z test rather than a t test?

When the sample size is greater than 30


Why would you use a t test rather than a z test?

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Can a police officer take you to walmart to take a blood test for a DUI?

yes. a blood test is also more accurate than a breath test.


Can you have smear test any other way i.e i have heard about a CA125 blood test rather than having to go down there..?

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Why is test tube placed in a test tube rack rather than in your hand?

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Should I take a blood test for pregnancy testing?

Yes you should take a blood test. It is more accurate & can be taken sooner than a urine test.


What is more effective a urine test conducted by a doctor or a blood test conducted by a doctor?

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