Challenge 1
Interpret a chemotherapy response
Identify how failed spindle attachment activates a checkpoint and blocks metaphase-to-anaphase progression.
Application library0/4 attempted
B.6C·Biology·Cell Cycle
Cell Cycle Disruptions in the real world
Explain how disruptions of the cell cycle, such as checkpoint failures, lead to diseases like cancer.
Transfer evidence, not just familiar practice
Correctly solve different fresh variations at least 24 hours after your first correct transfer response. Reviewing the same challenge again does not count as fresh retention evidence.
You can explore every situation now. Practice unlocks after you retain B.5B.
Career · Cancer research and oncology
Oncology treatment team
An oncology team examines why chemotherapy can stall dividing cells and why tumor cells may continue dividing after radiation while healthy cells pause.
Why this TEKS matters
Checkpoint control determines whether damaged or improperly attached chromosomes proceed through division, making it a key treatment target.
Challenge 2
Compare cells after radiation
Infer which damage-response control differs between healthy cells and tumor cells.
Everyday life · Skin health and public health
Sun safety and cancer information
A dermatology clinic explains how ultraviolet exposure damages skin-cell DNA, while a public-health report describes cultured cells dividing without normal growth signals.
Why this TEKS matters
Cell-cycle checkpoints protect against copying damaged DNA and restrain uncontrolled growth, connecting daily sun safety to cancer biology.
Challenge 3
Trace UV damage past a checkpoint
Identify the failed control that lets damaged skin cells proceed directly into DNA replication.
Challenge 4
Recognize unregulated division
Explain why ignoring growth signals and crowding points to disrupted cell-cycle regulation.