Question

CSI Lin needs to determine if the hair follicle is present to test for possible DNA. Why would she most likely choose stereomicroscopy?

A. It is designed to determine the chemical makeup of a fiber.
B. It is designed to examine 3-D specimens closer than with a hand lens.
C. It is designed to examine different layers at the same time.
D. It is designed to separate elements in a sample like drugs or toxins.

Answer 1

CSI Lin would use stereomicroscopy to examine the hair follicle in 3-D to locate potential DNA, as this method allows detailed visualization of physical specimen characteristics. Therefore given statement is B

Step-by-step explanation:

CSI Lin would most likely choose stereomicroscopy to determine if the hair follicle is present for potential DNA testing because stereomicroscopy is designed to examine 3-D specimens closer than with a hand lens. This method of microscopy allows for the visualization of the hair and follicle in their natural state, which is crucial for locating the presence of the follicle where DNA can be found. Unlike methods that focus on the chemical composition or isolating elements, stereomicroscopy provides a clear and magnified view of the physical characteristics of a specimen.