Week 3
Cellular Reproduction: Mitosis, Meiosis, and Mutation
Lab Report
Name: Breanna Simmons
Date: 09/10/2025
Please use this report form and simply “fill” in your methods, observational data and
analysis, and conclusions.
Purpose: To apply an understanding of the stages of mitosis to distinguish between
cancerous and noncancerous tissue samples.
Hypothesis:
Expected Observations: Based on what you know about the nature of cancer, how would you expect the stages
of mitosis to differ in a collection of normal cells as compared to a collection of cancerous cells? Write this in the
box below.
I anticipate that, prior to being examined under a microscope, the normal tissue samples (#1 &
#2) will exhibit uniformly sized and shaped cells that are arranged in a structured, ordered
pattern. After reading about mitosis and cancerous cell reproduction, I believe the healthy
tissue samples will remain in interphase mostly, as they are normal and functioning and should
not be multiplying abnormally. Conversely, since cancer is typically characterized by
uncontrolled cell growth and a loss of normal regulation, I predict that the cancerous tissue
samples (#3 & #4) will appear notably different. According to my prediction, these tissues will
appear with inconsistencies including more cells in different phases of mitosis rather than
interphase, as they are rapidly reproducing.
Materials and Methods
The materials for this lab are embedded within the Cellular Reproduction Lab located in
the Week 3 resources section. You must view the acquired mutation section of the lab
to reach the virtual microscope and tissue samples. There are four simulation tissue
samples; each of which is “stained” so that you can observe the stages of mitosis in the
sample cells. Select each sample with your mouse and “drag” it to the virtual
microscope in order to observe the cells in each sample.
Results
Use the chart below to record your observations of the tissue samples. For each virtual
tissue sample, count the number of cells in each stage of mitosis and record your
observations below.
© 2024 Walden University
Biopsy Lab Report - 1
Cellular Reproduction: Mitosis, Meiosis, and Mutation
Lab Report
Name: Breanna Simmons
Date: 09/10/2025
Please use this report form and simply “fill” in your methods, observational data and
analysis, and conclusions.
Purpose: To apply an understanding of the stages of mitosis to distinguish between
cancerous and noncancerous tissue samples.
Hypothesis:
Expected Observations: Based on what you know about the nature of cancer, how would you expect the stages
of mitosis to differ in a collection of normal cells as compared to a collection of cancerous cells? Write this in the
box below.
I anticipate that, prior to being examined under a microscope, the normal tissue samples (#1 &
#2) will exhibit uniformly sized and shaped cells that are arranged in a structured, ordered
pattern. After reading about mitosis and cancerous cell reproduction, I believe the healthy
tissue samples will remain in interphase mostly, as they are normal and functioning and should
not be multiplying abnormally. Conversely, since cancer is typically characterized by
uncontrolled cell growth and a loss of normal regulation, I predict that the cancerous tissue
samples (#3 & #4) will appear notably different. According to my prediction, these tissues will
appear with inconsistencies including more cells in different phases of mitosis rather than
interphase, as they are rapidly reproducing.
Materials and Methods
The materials for this lab are embedded within the Cellular Reproduction Lab located in
the Week 3 resources section. You must view the acquired mutation section of the lab
to reach the virtual microscope and tissue samples. There are four simulation tissue
samples; each of which is “stained” so that you can observe the stages of mitosis in the
sample cells. Select each sample with your mouse and “drag” it to the virtual
microscope in order to observe the cells in each sample.
Results
Use the chart below to record your observations of the tissue samples. For each virtual
tissue sample, count the number of cells in each stage of mitosis and record your
observations below.
© 2024 Walden University
Biopsy Lab Report - 1
