close
test_template

Comparing Mitosis and Meiosis

Human-Written
download print

About this sample

About this sample

close
Human-Written

Words: 434 |

Page: 1|

3 min read

Published: Feb 12, 2019

Words: 434|Page: 1|3 min read

Published: Feb 12, 2019

Mitosis and meiosis are both forms of cell division, however, their processes are not identical. Mitosis happens in somatic cells (cells that are not gametes), and it produces two genetically identical daughter cells. Mitosis happens to replace dead or damaged cells or during growth. Mitosis consists of 4 phases: prophase, metaphase, anaphase, and telophase. DNA replication happens during S phase which is before the mitotic phase. During prophase, the chromatin condense into chromosomes, and the mitotic spindle forms (textbook, 94). During metaphase, the chromosomes line up along the middle of the cell, known as the metaphase plate. During anaphase, the chromatid pairs separate, and each half of the pair is called a chromosome. During telophase, the last stage of mitosis, the identical sets of chromosomes are at opposite poles of the cell, the chromosomes revert back to chromatin, and a nuclear envelope reforms around each group of chromatin. The division of the cytoplasm after nuclear division is called cytokinesis (textbook, 95).

Meiosis, in contrast, occurs in gametes (sex cells), produces four genetically different daughter cells, and involves two divisions of genetic material. Meiosis is broken up into into two parts: meiosis I and meiosis II which both consist of four parts. Meiosis I occurs first after DNA replication and consists of prophase I, metaphase I, anaphase I, and telophase I. Prophase I, much like prophase in mitosis, is when the chromosomes shorten and the mitotic spindle forms. However, unlike prophase in mitosis, the two genetically identical sister chromatids pair off, and crossing over occurs between non sister chromatids. Crossing over is the very important reason that no two people have the same DNA. Metaphase I is very similar to metaphase in mitosis because the homologous pairs of chromosomes line up along the metaphase plate. In anaphase I, the homologous pairs of chromosomes are separated and pulled to opposite sides of the cell leaving the paired chromatids still together (textbook, 97).

Meiosis I results in two genetically different haploid cells after telophase I and cytokinesis which are similar to telophase and cytokinesis of mitosis. Meiosis II consists of prophase II, metaphase II, anaphase II, and telophase II. Prophase II is similar to prophase in mitosis, and no crossing over occurs during prophase II. Metaphase II is when the sister chromatids line up along the metaphase plate. During anaphase II, the sister chromatids separate and move to opposite poles of the cell. The final step of meiosis is telophase II and cytokinesis where the nuclear envelopes reform and four, genetically different haploid gametes are formed as a result of the original single diploid cell (textbook, 97).

Works Cited

  1. Campbell, N. A., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V., & Jackson, R. B. (2018). Biology (12th ed.). Pearson.
  2. Alberts, B., Johnson, A., Lewis, J., Raff, M., Roberts, K., & Walter, P. (2007). Molecular Biology of the Cell (5th ed.). Garland Science.
  3. Sadava, D., Hillis, D. M., Heller, H. C., & Berenbaum, M. R. (2016). Life: The Science of Biology (11th ed.). W. H. Freeman.
  4. Lodish, H., Berk, A., Kaiser, C. A., Krieger, M., Scott, M. P., Bretscher, A., ... & Matsudaira, P. (2003). Molecular Cell Biology (5th ed.). W. H. Freeman.
  5. Purves, W. K., Sadava, D., Orians, G. H., & Heller, H. C. (2004). Life: The Science of Biology (7th ed.). Sinauer Associates.
  6. Reece, J. B., Urry, L. A., Cain, M. L., Wasserman, S. A., Minorsky, P. V., & Jackson, R. B. (2014). Campbell Biology (10th ed.). Pearson.
  7. Nelson, D. L., Cox, M. M. (2017). Lehninger Principles of Biochemistry (7th ed.). W. H. Freeman.
  8. Russell, P. J., Hertz, P. E., & McMillan, B. (2010). Biology: The Dynamic Science (2nd ed.). Brooks/Cole.
  9. Karp, G. (2016). Cell and Molecular Biology: Concepts and Experiments (8th ed.). Wiley.
  10. Brooker, R. J., Widmaier, E. P., Graham, L. E., & Stiling, P. D. (2018). Biology (5th ed.). McGraw-Hill Education.
Image of Alex Wood
This essay was reviewed by
Alex Wood

Cite this Essay

Comparing Mitosis and Meiosis. (2019, February 11). GradesFixer. Retrieved November 2, 2024, from https://gradesfixer.com/free-essay-examples/mitosis-and-meiosis/
“Comparing Mitosis and Meiosis.” GradesFixer, 11 Feb. 2019, gradesfixer.com/free-essay-examples/mitosis-and-meiosis/
Comparing Mitosis and Meiosis. [online]. Available at: <https://gradesfixer.com/free-essay-examples/mitosis-and-meiosis/> [Accessed 2 Nov. 2024].
Comparing Mitosis and Meiosis [Internet]. GradesFixer. 2019 Feb 11 [cited 2024 Nov 2]. Available from: https://gradesfixer.com/free-essay-examples/mitosis-and-meiosis/
copy
Keep in mind: This sample was shared by another student.
  • 450+ experts on 30 subjects ready to help
  • Custom essay delivered in as few as 3 hours
Write my essay

Still can’t find what you need?

Browse our vast selection of original essay samples, each expertly formatted and styled

close

Where do you want us to send this sample?

    By clicking “Continue”, you agree to our terms of service and privacy policy.

    close

    Be careful. This essay is not unique

    This essay was donated by a student and is likely to have been used and submitted before

    Download this Sample

    Free samples may contain mistakes and not unique parts

    close

    Sorry, we could not paraphrase this essay. Our professional writers can rewrite it and get you a unique paper.

    close

    Thanks!

    Please check your inbox.

    We can write you a custom essay that will follow your exact instructions and meet the deadlines. Let's fix your grades together!

    clock-banner-side

    Get Your
    Personalized Essay in 3 Hours or Less!

    exit-popup-close
    We can help you get a better grade and deliver your task on time!
    • Instructions Followed To The Letter
    • Deadlines Met At Every Stage
    • Unique And Plagiarism Free
    Order your paper now