Question

Intracellular steroid hormone receptors have binding sites for a signaling molecule and a DNA sequence. How is it that the same steroid hormone receptor, which binds to a specific DNA sequence, can regulate different genes in different cell types?

Answer 1

Steroid hormones can regulate different genes in different cell types because the response elements, although specific to the receptor, can be located in different genes. This allows the same receptor to activate different genes in different cells.

Step-by-step explanation:

Steroid hormones are able to regulate different genes in different cell types because they bind to intracellular receptors that regulate gene expression. Although the receptor binds to a specific DNA sequence, the response elements can be located in different genes in different cell types. This means that the same receptor can activate different genes in different cells, leading to specific cellular responses.