During prenatal development, the process of mitosis drives rapid and exponential cellular growth. As an example of this proliferation, after 5 days of cell division, the initial structure grows to approximately 100 cells, and by the end of 9 months, it develops into an organism consisting of billions of specialized cells.

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Mitosis is the process of cell division that begins after conception, where the single-celled zygote divides exponentially. This fragile process involves the cell count growing from one to two, four, eight, and so on. Due to the delicate nature of this stage, fewer than half of all zygotes survive the first two weeks. As mitosis continues, the dividing cells become increasingly specialized, laying the groundwork for the formation of different organs and body parts.

Mitosis in the Germinal Stage

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

A single fertilized egg begins to divide over the first few days following conception. Based on the typical characteristics of this initial stage of development, which statement provides the most accurate analysis of this process?

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