Cell differentiation always involves
A) the production of tissue-specific proteins, such as muscle actin.
B) the movement of cells.
C) the transcription of the myoD gene.
D) the selective loss of certain genes from the genome.
E) the cell's sensitivity to environmental cues, such as light or heat.

Question

Quizplus · Accepted Answer

Cell differentiation involves the production of tissue-specific proteins, such as muscle actin, which are responsible for the specialized functions of different cell types. This process is regulated by the expression of specific genes that are turned on or off to generate the necessary proteins.

B, C, D, and E are not always necessary for cell differentiation. Although movement, transcription of specific genes, and selective loss of certain genes may be involved in specific cases, they are not essential components of the process. The cell's sensitivity to environmental cues may also play a role in differentiation, but again, it is not essential.

Cell Differentiation Always Involves