Question

Gene regulation can be described as switching genes ON or OFF according to which two factors?

Options

• DNA replication status and chromosome number

• Available ATP and metabolic rate

• Protein concentration and cell size

• Cell's requirements and developmental stage

Answer 1

Gene expression is regulated by switching genes ON or OFF according to the cell's requirements and developmental stage. This allows for coordinated regulation of multiple gene sets responsible for development and differentiation from the embryo to the adult organism.