p53

n. a tumor-suppressor gene that regulates an organism’s cell cycle and protects the cell’s DNA from damage. Mutations in p53 cause cells to become malignant. Germ-line mutations in p53 are responsible for most cases of Li–Fraumeni syndrome, and in families with this syndrome, carriers of p53 mutations have a 90% lifetime risk of developing one or more kinds of cancer.

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Psychology term of the day

February 25th 2025

error of commission

a category of human error in which an operator performs an incorrect or additional action, such as pressing a control button twice, leading to inappropriate or duplicate performance of a function. Compare error of omission.