DH+cancer+chapter+19.1

19.1 cancer cell questions

1. What characteristics of cancer cells allow them to grow uncontrollably? 2. Mutations in what two types of genes lead to uncontrollable growth? 3. What are the most common types of cancer? THESE ARE THE TYPES OF CANCERS, BUT MOST COMMON REFERS TO BREAST CANCER, COLON CANCER ETC. NEED TO DEFINE VOCAB
 * Abnormal Nuclei
 * "the nuclei of cancer cells are enlarged and may contain an abnormal number of chromosomes."
 * Unlimited replicative potential
 * "Cancer cells are immortal and keep on dividing for an unlimited number of times"
 * no need for growth factors
 * "chemical signals between cells tell them whether they should be dividing or not dividing. Cancer cells keep on dividing, even when stimulatory growth factors are absent, and they do not respond to inhibitory growth factors.
 * Proto-oncogenes
 * Tumor-suppressor genes
 * Sarcomas
 * Leukemias
 * Lymphomas