Based on the analysis of the 16 onion cells in the provided diagram, here is the identification of each cell's phase of mitosis and the solution to the math problems.
Phase Identification for Each Cell
To identify the phases, we use the following key characteristics:
*
Interphase: A distinct, intact nucleus with granular chromatin that is not condensed into visible chromosomes.
*
Prophase: The nuclear envelope breaks down, and chromatin condenses into visible, scattered chromosomes.
*
Metaphase: Chromosomes are fully condensed and aligned along the equator (middle) of the cell.
*
Anaphase: Sister chromatids separate and are pulled toward opposite poles of the cell.
*
Telophase: Chromosomes arrive at the poles, begin to de-condense, and new nuclear envelopes start to form.
Applying these criteria to the image:
*
Cell 1: Interphase (intact nucleus, granular chromatin)
*
Cell 2: Prophase (chromosomes visible and scattered)
*
Cell 3: Interphase (intact nucleus, granular chromatin)
*
Cell 4: Metaphase (chromosomes lined up at the equator)
*
Cell 5: Anaphase (chromosomes separated and moving to opposite poles)
*
Cell 6: Telophase (chromosomes at poles, nuclei reforming)
*
Cell 7: Interphase (intact nucleus, granular chromatin)
*
Cell 8: Prophase (chromosomes visible and scattered)
*
Cell 9: Interphase (intact nucleus, granular chromatin)
*
Cell 10: Metaphase (chromosomes lined up at the equator)
*
Cell 11: Anaphase (chromosomes separated and moving to opposite poles)
*
Cell 12: Telophase (chromosomes at poles, nuclei reforming)
*
Cell 13: Interphase (intact nucleus, granular chromatin)
*
Cell 14: Prophase (chromosomes visible and scattered)
*
Cell 15: Interphase (intact nucleus, granular chromatin)
*
Cell 16: Metaphase (chromosomes lined up at the equator)
Solution to Math Problems
Based on the identifications above, we can count the number of cells in each phase:
*
Total Cells: 16
*
Cells in Interphase: Cells 1, 3, 7, 9, 13, 15 =
6 cells
*
Cells in Metaphase: Cells 4, 10, 16 =
3 cells
Now, we calculate the percentages:
1.
What percentage of the cells are in interphase?
* Calculation: (Number of cells in Interphase / Total number of cells) x 100
* (6 / 16) x 100 = 0.375 x 100 =
37.5%
2.
What percentage of the cells are in metaphase?
* Calculation: (Number of cells in Metaphase / Total number of cells) x 100
* (3 / 16) x 100 = 0.1875 x 100 =
18.75%
---
Final Answer:
*
Percentage of cells in Interphase: 37.5%
*
Percentage of cells in Metaphase: 18.75%
Parent Tip: Review the logic above to help your child master the concept of onion cell mitosis worksheet answers.
![ANSWERED] 7 This drawings shows various stages of mitosis in a ...](/images2/onion-cell-mitosis-worksheet-answers/onion-cell-mitosis-worksheet-answers-10.jpg)
