Honors Cell Cycle, Differentiation, Meiosis

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

Tags

NGSS.HS-LS1-4

What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering
• survival of the fittest
• differentiation
• selective breeding

Tags

NGSS.HS-LS1-4

How do stem cells know what type of cells to differentiate into?

• The nucleus has instructions to turn some genes on and some genes off.
• Signals from chemicals in the organism or from the environment determine which genes will be turned on and off.
• Genes turn on and off randomly.
• The cell has unique DNA that determines what the cell will become.

Tags

NGSS.HS-LS1-4

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect each resulting fruit fly daughter cell to have -

• 16 chromosomes.

• 46 chromosomes.

• 8 chromosomes.

• 4 chromosomes.

In which type of cells will mitosis occur?

• gamete cells

• sex cells

• gonads

• somatic cells

How did the unspecialized cell turn into hepatocyte (liver cell)?

• the cell was deactivated

• the genes that code for the cells were activated

• the genes that code for the cells were deactivated

• the cell was activated

Identify the green structure/dot

• unreplicated chromosome
• unreplicated chromosome
• spindle fibers
• centromere

Identify the strings that attach to the centromeres of each string

• Centrioles

• replicated chromosomes

• spindle fibers

• centromere

Identify the step of mitosis

• interphase
• prophase
• metaphase
• anaphase

Identify the functions of the cell cycle

• checkpoints
• division and differentiation
• growth and repair
• photosynthesis and respiration