xamine the graph showing the relative percentage normal and cancer cells spend in various stages of the cell cycle. Based on the information in the graphs, infer how cancer cells differ from typical, noncancerous cells. Select ALL that apply.   A) Cancer cells do not replicate their DNA.     B) Cancer cells replicate their DNA too quickly.     C) Cancer cells do not go through interphase during their cell cycle.     D) Cancer cells spend more time dividing compared to typical cells.     E) Cancer cells do not always grow to the same size as typical cells.   more than 1 answer. not graded

.The stage of the cell cycle during which sister chromatids separate from one another is   a) mitosis b) the G1 phase c) the S phase d) the G2 phase  e) the G0 phase

Which of the following effectively describes the situation of someone with an inherited predisposition to cancer such as familial adenomatous polyposis or BRCA-associated familial breast cancer?  Choose all that apply a) If they get malignant cancer, somatic mutations will not have been a factor b) Their cancer will most likely arise in their germ cells, not their somatic cells c) None of the answers effectively describes the situation d) Every cell of their body contains a gain-of-function allele of an oncogene e) Most cells in their body contain multiple cancer-causing mutations f) Every cell of their body contains a defective, loss-of-function allele of a tumor suppressor gene

3) The tumor suppressor protein Rb regulation of the entry into the S phase of the cell cycle is represented in this diagram. DNA Answer: b) Explain your choice above: Answer: Rb E2F Genes needed for S phase are NOT transcribed Growth factor Ras pathway Cdk-cyclin 30 ATP ADP Phosphorylated Rb protein P Rb E2F Gene transcription a) In hereditary retinoblastoma tumors, Rb is mutated. Among the following mutations, which one is not likely to be found in these tumors. 1) Mutation prevents Rb to bind E2F by modifying the binding site. 2) Mutation prevents Rb to be dephosphorylated and recycled (possibly by prevented phosphorylated Rb to be recognized by the phosphatase that removes its phosphates). 3) Mutation may cause Rb to be misfolded and not have a functional conformation 4) Mutation that prevent Rb to be phosphorylated by cdk-cyclin. 5) Mutation may cause Rb to be unstable and degraded rapidly. c) (4 pts) Human papilloma virus (HPV) infections are the main causes of cervical cancers.…