Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 8 of 8 for copy
  1. MTHFR Mutation Test: MedlinePlus Medical Test 
    ... and how your body works. You have two copies of the MTHFR gene, one from each parent. ... MTHFR gene test shows that you have: Two copies of the C677T gene change or one copy ...
    https://medlineplus.gov/lab-tests/mthfr-mutation-test - Medical Tests
  2. Prenatal Cell-Free DNA Screening: MedlinePlus Medical Test 
    ... If one of these pairs has an extra copy of a chromosome, it's called a trisomy. A ... and brain develop. If there is an extra copy of chromosome 21, it's called Down syndrome. This ...
    https://medlineplus.gov/lab-tests/prenatal-cell-free-dna-screening - Medical Tests
  3. HER2 Tumor Marker Test: MedlinePlus Medical Test 
    ... on the surface of cancer cells How many copies of the HER2 gene are inside the cancer ... from each parent. But certain cancers have extra copies of the HER2 gene, which leads to too ...
    https://medlineplus.gov/lab-tests/her2-tumor-marker-test - Medical Tests
  4. Alpha-1 Antitrypsin Testing: MedlinePlus Medical Test 
    ... run in families. If you have two mutated copies of the gene , it means you have a ... age of 45. If you have one mutated copy of the gene , you are a carrier of ...
    https://medlineplus.gov/lab-tests/alpha-1-antitrypsin-testing - Medical Tests
  5. Down Syndrome Tests: MedlinePlus Medical Test 
    ... Most people with Down syndrome have an extra copy of chromosome 21 in all their cells. This ... is called trisomy 21. "Trisomy" means having three copies of a chromosome in your cells instead of ...
    https://medlineplus.gov/lab-tests/down-syndrome-tests - Medical Tests
  6. PCR Tests: MedlinePlus Medical Test 
    ... the sample. This causes the sample to produce copies. The copying process is repeated multiple times. After about an hour, billions of copies are made. If a virus or pathogen is ...
    https://medlineplus.gov/lab-tests/pcr-tests - Medical Tests
  7. Phenylketonuria (PKU) Screening: MedlinePlus Medical Test 
    ... t have it. That's because you have two copies of all your genes, one from each parent. ... have PKU, you must have changes in both copies of the gene that causes PKU. If you ...
    https://medlineplus.gov/lab-tests/phenylketonuria-pku-screening - Medical Tests
  8. TP53 Genetic Test: MedlinePlus Medical Test 
    ... you inherit from your parents. You inherit two copies of each gene, one from each parent. Genes ... show you have an inherited change in one copy of your TP53 gene, you have Li-Fraumeni ...
    https://medlineplus.gov/lab-tests/tp53-genetic-test - Medical Tests