A blood stained object that is exposed to Luminol will not be suitable for DNA analysis.Question 7Select one:TrueFalse

The statement "A blood stained object that is exposed to Luminol will not be suitable for DNA analysis" is True.

Explanation

Luminol is a chemical that is used in forensic science to detect traces of blood at crime scenes. It reacts with hemoglobin and emits a blue luminescent glow even in very small quantities of blood. However, this reaction can adversely affect the integrity of DNA on the blood-stained object.

When Luminol is applied, it often involves the use of hydrogen peroxide and other corrosive substances which can chemically degrade the DNA. This degradation renders the DNA unsuitable for analysis, making it challenging to extract and identify the genetic material from the blood sample. As a result, while Luminol is an excellent tool for locating blood, its use compromises the sample for subsequent DNA profiling.

In forensic investigations, it is crucial to preserve DNA integrity, so alternative methods are usually considered for blood detection when DNA analysis is a priority. Thus, the assertion is accurate.