Bio 10-3

The checkpoints are found at:

• S - Synthesis phase

  G2 - Gap 2 phase

• G1 - Gap 1 phase

  S - Synthesis phase

  M - Mitosis stage

• M - Mitosis stage

  G1 - Gap 1 phase

• There is on answer

Which phrase best describes a common characteristic of all cancers?

• absence of cyclins
• damaged DNA
• uncontrolled cell growth
• inherited from parents

In which stage of the cell cycle are cells most susceptible (likely to experience) to mutations?

• G1

• S

• G2

• G0

What kind of a gene is p53?

• Proto-Oncogene
• Oncogene
• Tumor Suppressor Gene
• Proto-Tumor Suppressor Gene

______ is programmed cell death

• Cancer

• apoptosis

• carcinogen

• cyclins

Which of the following is true for a cancer:

I. As one grow older the risk of cancer increases

II. can be caused by a change in DNA

III. can be passed from parent to offspring

• I only

• II only

• II and III

• I, II and III

What proteins serve as the regulators of the cell growth cycle?

• Ubiquitin

• Melatonin

• Cyclin

• Growthin

Cancer that has the ability to spread 

• somatic
• benign
• malignant
• diploid

A cancerous tumor that does not spread to other areas 

• benign
• carcinogenic
• malignant
• metastisized

When cancer spreads to other areas of the body, it is said to have

• metastisized
• benigned
• tumored
• localized