cell cycle review

What do the 2 arrows represent?

• Arrow 1 is prophase, arrow 2 is interphase

• arrow 1 is mitosis, arrow 2 is meiosis

• arrow 1 is interphase, arrow 2 is mitosis

• arrow 1 mitosis, arrow 2 is interphase

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NGSS.HS-LS1-4

In what phase of the cell cycle is DNA replicated?

• G1 phase of interphase

• G2 phase of interphase

• M phase

• S phase of interphase

What phase is this?

• Prophase

• Metaphase

• Anaphase

• Telophase

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NGSS.HS-LS1-4

Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some

tumor cells are benign, while others are malignant. How does the presence of an oncogene lead

to the formation of a tumor?

• ATP production is inhibited

• cell division is unregulated

• somatic cell growth is inhibited

• antibody activity is unregulated

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NGSS.HS-LS1-4

NGSS.HS-LS3-2

When cells leave the cell cycle, they exit during G1 phase and then enter G0 phase, a resting period. Most normal cells can leave G0 phase and reenter the cell cycle at G1 phase before entering S phase. Cancer cells are different because they cannot enter G0 phase and are likely to do which of the following?

• Fail to complete S phase

• Mutate during G1

• repeat the cell cycle continuously

• die

Why is DNA damage repaired before it goes into mitosis?

• so DNA synthesis doesn't need to take place

• to make sure each daughter cell is healthy and can continue growth

• so chromosomes line up correctly in metaphase

• to make sure each cell gets cytoplasm in cytokinesis

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NGSS.HS-LS1-4

Where is S phase (DNA replication) occurring?

• I

• II

• III

• IV

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NGSS.HS-LS1-4

DNA damage can turn off genes involved in cell-signaling pathways that regulate the cell cycle. Turning off

these genes can cause less-mature cells to divide too rapidly, often leading to the development

of —

• cardiovascular disease

• tumors

• allergies

• hemophilia

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NGSS.HS-LS1-4

NGSS.HS-LS3-2

Scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries. This bioengineered tissue is grown from living cells. The cellular process that enables the cells to grow and develop into tissue is —

• Mitosis

• Meiosis

• binary fission

• budding

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NGSS.HS-LS1-4

Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?

• Meiosis

• Mitosis

• Interphase

• Transcription

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NGSS.HS-LS1-4