Question

In the body, why do muscle cells and skin cells look and behave differently?
Responses

They have different genes.
They have different genes.

Their genes are being expressed differently.
Their genes are being expressed differently.

The same genes are being expressed in both types of cells.
The same genes are being expressed in both types of cells.

There is no similarity in their chromosomes.
Answer
Which genes are present in the liver cells?
Responses

Only the genes needed by the liver cells are present in those cells.
Only the genes needed by the liver cells are present in those cells.

Liver cells do not require any genes.
Liver cells do not require any genes.

Half the number of genes is present in the liver cells.
Half the number of genes is present in the liver cells.

All the genes are present in the liver cells.
Answered by GPT-4o mini
Muscle cells and skin cells look and behave differently primarily because **their genes are being expressed differently**. Although both types of cells contain the same genetic information, the specific genes that are turned on or off determine the characteristics and functions of each cell type. This process, known as gene expression, leads to the production of different proteins that define the structure and function of muscle cells versus skin cells.