Question

Cancer cells exhibit altered behaviors compared to normal cells. Which of the following describes two normal cellular behaviors that cancer cells typically no longer display?

A) Contact Inhibition
B) Apoptosis Sensitivity
C) Senescence Induction
D) Mitotic Synchronization:

Answer 1

Cancer cells often lack contact inhibition and apoptosis sensitivity, which allows them to grow uncontrollably and evade programmed cell death.

Step-by-step explanation:

Two normal cellular behaviors that are typically not displayed by cancer cells are Contact Inhibition and Apoptosis Sensitivity. Contact inhibition refers to the ability of cells to stop dividing once a certain density is reached, which cancer cells lack, resulting in the formation of multiple layers instead of stopping at a monolayer.

Apoptosis sensitivity is the process by which cells can undergo programmed cell death when they are damaged or no longer required, but cancer cells often evade this process, allowing them to survive and multiply unchecked.