Final answer:
Gene expression controls are important because they prevent genes from being over-expressed, conserving energy and space. The regulation of gene expression helps prevent the development of diseases like cancer.
Step-by-step explanation:
Gene expression controls are important because they help prevent genes from being over-expressed.
When genes are over-expressed, it can lead to various issues, including the development of diseases like cancer.
The regulation of gene expression conserves energy and space by turning on genes only when they are required and only expressing a subset of genes in each cell.
This energy-efficient process also saves space because DNA must be unwound to transcribe and translate the DNA, which would require enormous cells if all proteins were expressed all the time.