how can man DNA identified to a family tree ? through his blood or through his sperm?

[questionasker777]

I am not medical student, i just have a question with doctor or student doctor who is willing to remove confusion from my mind.

I want to know!

How man can identify his DNA belongs to a family tree? through his blood or through his sperm?

Thankyou for answering.

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[questionasker777]

if wet or dry sperm is provided for test will it be sufficient to get results ?

 

[Winged Scapula]

SDN is not for medical advice.