Cell Cycle Cancer and Mutations

Cancer is a __________ tumor; it spreads and invades into nearby organs and spreads to the other tissues in the body.

• malignant

• benign

• family

• dead

If a honey badger has 100 chromosomes, how many chromosomes will its daughter cells have after it undergoes mitosis?

• 200

• 100

• 50

• 150

Mutations in a cell cause uncontrolled cell growth. What cases a mutation?

• an error in DNA

• frequent replication of DNA

• the production of a complementary strand of DNA

• the translation of RNA into the language of amino acids

Cancer research done over the past several decades has found that mutations cause uncontrolled cell growth. What process does not function normally in cancer cells?

• osmosis

• cell cycle

• exocytosis

• cellular respiration

Bob has been a lifelong cigarette smoker.  The toxins in cigarettes have been proven to cause certain mutations in cells, often in lung cells.  Bob’s cells recently began overproducing.  What will most likely be the outcome of this overproduction of cells?

• Some Bob’s lung cells will reproduce without regulation resulting in a tumor.

• All of Bob’s cells will mutate.

• ALL of Bob’s cells will stop dividing.

• Most of Bob’s cells will stop dividing.

Cancer cells bypass the normal division cycle because they…

• Have had their DNA repair genes mutated

• Lack tumor suppressor genes.

• Have oncogenes that cause the cell to reproduce rapidly

• All of  the above

Cancer mutations may activate to either form a cancer causing ____________ or an inactivated protective gene called a __________ _________ gene.

• bumps; gene suppressor

• bruises; gene activator

• blood loss; stem cell

• tumor; tumor suppressor

The cell cycle is made up of two main stages: interphase and mitosis. Which of the following events occurs during interphase?

• divides the cytoplasm.

• copies DNA.

• produces a new cell.

• divides the nucleus.

When a cell in your skin divides, each daughter cell contains organelles, including a nucleus. The nucleus contains a certain number of chromosomes. What would be the best statement about the number of chromosomes in a daughter cell in your skin?

• Each daughter cell has HALF the number of chromosomes as the parent cell.

• Each daughter cell has TWICE the number of chromosomes as the parent cell.

• Each daughter cell has the SAME number of chromosomes as the parent cell.

• Each daughter cell has FOUR TIMES the number of chromosomes as the parent cell.

What is one difference between mitotic cell division in plants and mitotic cell division in animals?

• Chromosomes are replicated in plants but not in animals

• The replicated chromosomes separate in plants but not in animals

• A cell plate divides the cytoplasm in plants but not in animals

• The nuclear membrane reforms in plants but not in animals