A&P Biology Review: Cell Cycle --> Epigenetics

What terms refers to a section of DNA with instructions for making a protein?

• Gene

• Chromosome

• Chromatid

True or False: All cells have the same genes, but different genes are turned on in different cells.

• True

• False

True or False: The body cells produced by the cell cycle with mitosis are genetically unique whereas sex cells produced through meiosis are identical.

• True

• False

Which of these has the stages of mitosis in order?

• Prophase, anaphase, telophase, metaphase

• Prophase, metaphase, anaphase, telophase

• Anaphase, prophase, metaphase, telophase

• Anaphase, prophase, telophase, metaphase

If many cells in a biopsy are in mitosis and dividing, it suggests...

• the sample is cancerous because cells normally spend most of their time dividing in mitosis

• the sample is cancerous because cells normally spend most of their time in interphase not dividing

• the sample is not cancerous because cells normally spend most of their time dividing in mitosis

• the sample is not cancerous because cells normally spend most of their time in interphase not dividing

Somatic (body) cells are replicated through _ , whereas gametic/sex cells (eggs and sperm) are replicated through _

• meiosis, mitosis

• mitosis, meiosis

Mutations may result in

• No effect

• A positive effect such as being better adapted

• A negative effect such as cancer

• All of these

True or False: Brain and spinal cells cannot go through the cell cycle.

• True

• False

Answer explanation

This is why injuries to the brain and spinal cord are particularly dangerous: brain and spinal cells cannot replicate to repair the damage.

This is an unspecialized cell type that can specialize to become any cell type

• blood cell

• liver cell

• stem cell

• none of these

True or False: Genes that are turned off are the ones that proteins are made for through protein synthesis

• True

• False