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Multiple Choice
A researcher wants to film the movement of chromosomes during cell division. Which type of microscope should she choose, and why is it the best choice?
A
Light microscope because of its high resolving power
B
Transmission electron microscope because of its high magnifying power
C
Scanning electron microscope because of its ability to visualize the surface of subcellular objects
D
Transmission electron microscope because of its high resolving power
E
Light microscope because the specimen is alive
Verified step by step guidance
1
Understand the requirements: The researcher wants to observe the movement of chromosomes during cell division, which means the specimen must be alive and dynamic processes need to be visualized.
Consider the types of microscopes: Light microscopes, transmission electron microscopes (TEM), and scanning electron microscopes (SEM) are common options, each with different capabilities.
Evaluate the light microscope: Light microscopes allow for the observation of living cells and dynamic processes, which is crucial for filming chromosome movement during cell division.
Evaluate the electron microscopes: TEM and SEM provide high magnification and resolution but require specimens to be fixed, dehydrated, and often coated with metal, making them unsuitable for observing live cell processes.
Conclude the best choice: The light microscope is the best choice because it allows for the observation of living specimens, enabling the researcher to film the dynamic process of chromosome movement during cell division.