Question

unit 2 exam 2025 - 26
all the cells in the human body originated from on fertilized cell. briefly explain how they become so differentiated even if they have the same dna?

Explanation:

Cells differentiate through gene - regulation. Different genes are turned on or off in different cell types, despite having the same DNA. This is controlled by transcription factors and epigenetic modifications like DNA methylation and histone modification, which influence how genes are expressed and lead to the development of various cell types with distinct functions.

Answer:

Cells differentiate via gene - regulation, involving transcription factors and epigenetic modifications that control gene expression despite identical DNA.