Which of the following events is considered to be the first evidence of differentiation in the cells of an embryo?

Question

Quizplus · Accepted Answer

The occurrence of mRNAs for the production of tissue-specific proteins is considered to be the first evidence of differentiation in the cells of an embryo, as it indicates that cells are becoming specialized and preparing to perform specific functions within the developing organism. While cell division and changes in cell size and shape occur during embryonic development, they do not necessarily indicate differentiation, and determination of specific cells for certain functions occurs later in the process of embryonic development.

Which of the Following Events Is Considered to Be the First