Dna Test

DNA tests are done to know about ancestral information and to confirm the biological father of a baby. They are 100% accurate and make use of the deoxyribonucleic acid (DNA) that the baby has inherited from the mother and father. The DNA sample can be taken either by a cheek swab or blood test. There are certain DNA tests that can be done even on the fetus to know about the biological father. It is important for these tests to be done in a medical institution if they are done for any legal reasons.

Recently Answered Questions Recently Answered Questions

All the answers published in this website are written by Verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

Is there a marker in a person's blood that indicates their sex?

Query: Hi doctor, I am a 65 year old transgender female, and I have been on hormone therapy for the past two years. I have had an orchidectomy but not gender reassignment surgery. I recently donated blood, and on the questionnaire, it asked for my biological sex. The person there said that because I was b...  Read Full »


Dr. Sadaf Mustafa

Answer: Hi, Welcome to icliniq.com. Every cell in your body has DNA (deoxyribonucleic acid) that defines the genetic makeup. A male is XY and a female is XX. Other than red blood cells, which does not have DNA, rest every cell of the body has DNA. The blood is a mixture of all different kinds of proteins an...  Read Full »

Am I negative for HIV 2 if DNA nad RNA PCR tests remain negative after 3 months of exposure?

Query: Hi doctor, Do you have any experience in HIV 2? I have done my HIV 2 DNA/RNA PCR test and antibody test which came back both negative after three months. What I am worried is HIV 2 is a slowly replicating virus and worry that HIV 2 DNA/RNA PCR test cannot pick up even after three months. Is it true...  Read Full »


Dr. Kiran Anaparthi

Answer: Hi, Welcome to icliniq.com. The replication of the virus has no relationship in the detection of the virus. If the virus is present in the body, the immune system will detect it, and start defending the body by producing antibodies. This procedure does not need any replication of the virus. It jus...  Read Full »

Would having milk or water before swab test alter the DNA?

Query: Hi doctor, After my unprotected sex, I had spotting just for a single day. Now I assume it was when implantation took place as I missed my periods and confirmed pregnancy two weeks later. My question is when does implantation happened exactly? Secondly while we were waiting for swab test my child h...  Read Full »


Dr. Sumit Srivastava

Answer: Hello, Welcome to icliniq.com. Implantation bleeding can be a sign of the pregnancy and it happens when the ovum implants into the uterine wall (implantation). It can begin on the 23rd to 28th day of your menstrual cycle. Generally, it is recommended to wait for one hour after drinking, eating, etc...  Read Full »

How to find out whether the stem cell sample is futile or not?

Query: Hello doctor, I preferred for stem cell preservation of my baby at a private stem cell bank. Now, after 3 months, I received a mail stating that despite our best efforts the isolation and expansion of mesenchymal stem cells were unsuccessful primarily due to no growth. The customer care replied tha...  Read Full »


Dr. Prakash H Muddegowda

Answer: Hi, Welcome to icliniq.com. Based on your query, my opinion is as follows. Stem cells are difficult to decontaminate as they do not have any supporting cells to fight like white blood cells in our body. No antibiotics can be used. It is difficult to talk about negligence, as many factors influence, ...  Read Full »

Is NIPT required in the second trimester?

Query: Hello doctor, My 37-year-old wife is 14 weeks pregnant with my second child. Her level one scan is normal and the double marker is also fine. But, the doctor has told to get DNA test that is an NIPT test. Is it important? If level 1 and the double marker are fine then DNA and NIPT test should also ...  Read Full »


Dr. Prabha Ranjan

Answer: Hello, Welcome to icliniq.com. Double marker, level 1 scan and NIPT (non-invasive prenatal testing) all are screening test and not diagnostic. They just suggest a possibility of the disease. So, if both the testsare normal you can avoid taking NIPT test. It is not a compulsory test and again a s...  Read Full »

What diet should I follow during pregnancy to prevent Down's syndrome?

Query: Hi doctor, During my previous pregnancy last year, due to a Down syndrome issue, the baby's brain was not formed properly. This was detected at the end of the fourth month. At that time, I did not go for a TORCH test. Now, I am pregnant again. At the third week check up, he did a TORCH test. IgG an...  Read Full »


Dr. Deepti Verma

Answer: Hello, Welcome to icliniq.com. I have gone through your query and understand the concerns. You having a history, of the brain of the baby not forming properly due to Down Syndrome in the last pregnancy, is not an indication for getting a TORCH (toxoplasmosis, rubella cytomegalovirus, herpes simplex...  Read Full »

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