Cell Differentiation/Gene Expression DOL

Front

What is gene expression?

Back

Gene expression is the process by which information from a gene is used to synthesize a functional gene product, typically proteins.

Front

When does gene expression occur?

Back

Gene expression occurs when a gene is activated and used in protein synthesis.

Front

What is cell differentiation?

Back

Cell differentiation is the process by which a less specialized cell becomes a more specialized cell type, allowing it to perform specific functions.

Front

Why do cells differentiate?

Back

Cells differentiate to perform different functions because different genes are turned on or off inside that cell.

Front

What is the lac operon model?

Back

The lac operon model is a regulatory system in bacteria that controls the expression of genes involved in lactose metabolism.

Front

When are the genes in the lac operon expressed?

Back

The genes in the lac operon are expressed when lactose is present in the cell.

Front

Do all cells in the human body have the same DNA?

Back

Yes, all cells in the human body have the same DNA, but they can express different genes.

Front

How can muscle cells and nerve cells have the same DNA but different functions?

Back

Muscle cells and nerve cells have the same DNA, but they express different proteins, leading to different functions.

Front

What role do proteins play in cell function?

Back

Proteins play crucial roles in cell function, including acting as enzymes, structural components, and signaling molecules.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein.