What is a key consequence of DNA mutations?

A key consequence of DNA mutations is that they can lead to diseases like cancer. DNA mutations, which are changes in the nucleotide sequence of the DNA, can disrupt normal cellular functions. For instance, when mutations occur in genes that regulate cell growth and division, such as oncogenes or tumor suppressor genes, they can lead to uncontrolled cell proliferation. This process is a fundamental aspect of cancer development.

Mutations can be spontaneous or induced by environmental factors, and not all mutations are detrimental—some may be neutral or even beneficial in certain contexts (though beneficial mutations are less common). However, the potential for mutations to cause significant disruptions in cellular processes highlights the critical association between genetic stability and health.

While other answers touch on broader concepts surrounding mutations, the direct link between mutations and the onset of diseases like cancer underscores their potential to cause serious health issues, making this answer the most accurate choice in the context of the consequences of DNA mutations.