Biological evidence such was blood and semen can deteriorate over time if they are not frozen.Question 19Select one:TrueFalse

Final Answer

True

Biological evidence, including blood and semen, can indeed deteriorate over time if not properly preserved. This deterioration is caused by various factors, such as temperature changes, exposure to air, moisture, and bacterial contamination. At room temperature, these biological samples can undergo decomposition and degradation, which may compromise their integrity and lead to the loss of crucial DNA or other forensic evidence.

Freezing biological samples significantly slows down enzymatic reactions and microbial growth, thereby preserving the integrity of the sample for future analysis. In forensic science, the proper handling and storage of biological evidence are critical for ensuring that it remains viable for use in investigations and legal proceedings. Therefore, the assertion that these samples can deteriorate without freezing is accurate.