Polymerase chain reaction (PCR) testing has been proven effective for determining the sex of fetuses using DNA from the mother's blood and for diagnosing ocular infectious diseases. PCR allows for the precise quantification and amplification of nucleic acids. It has helped detect viruses, parasites, and other infectious agents. PCR is a useful diagnostic tool in medicine due to its speed, efficiency, and ability to detect genetic material without invasive procedures.

1. Tests that use DNA from mother’s blood to determine sex of fetus often effective 2. Polymerase chain reaction testing proven for diagnosing ocular infectious disease LAURA FANDIÑO GAVIRIA MEDICINE STUDENT 3° SEMESTER UPB

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4. INTRODUCTION PCR has some stages and characteristics that lead it to be effective. Despite having some diagnostic difficulties in some cases, applications are so important and so global that the use of this technique can greatly help modern medicine

5. Tests that use DNA from mother’s blood to determine sex of fetus often effective Thisnoninvasivemethodhelpstoknowfetus sex and possiblediseases.

6. Tests that use DNA from mother’s blood to determine sex of fetus often effective The increased concentration of cell-free fetal DNA within maternal blood as the fetus and placenta develop in a gestation advancedstagemaketheperfectresults.

7. Tests that use DNA from mother’s blood to determine sex of fetus often effective The quantitative PCR in this case isbased in a digital imageanalysisthatallowsthe precise quantification of nucleicacidbands

8. Tests that use DNA from mother’s blood to determine sex of fetus often effective The Real-time PCR allowsknowing and registering at all times theamplificationreactionkinetics.

10. Polymerase chain reaction testing proven for diagnosing ocular infectious disease Polymerase chain reaction is considered as a routine test to detect ocular infectious disease, is a reality to improve patient care.

11. Polymerase chain reaction testing proven for diagnosing ocular infectious disease PCR was the chief diagnostic tool for identifying cytomegalovirus and infection with Toxoplasma.

16. BIBLIOGRAPHY http://esciencenews.com/articles/2011/08/09/tests.use.dna.mother.s.blood.determine.sex.fetus.often.effective MARTINEZ SANCHEZ, Lina Maria. Biología molecular. 6.ed. Medellin: UPB. Fac. de Medicina, 2011. 113-119 p http://www.cienciahoy.org.ar/hoy23/reaccion.htm http://www.osnsupersite.com/view.aspx?rid=85947#jump

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