Cell Cycle & Mitosis

What is the correct order of the mitosis phases shown above?

• A-B-C-D

• D-C-B-A

• C-B-A-D

• D-C-A-B

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NGSS.HS-LS1-4

Which of the following is NOT a correct statement about the events of the cell cycle? 

• Interphase is usually the longest phase

• DNA replicates during the S phase. 

• Cell division ends with cytokinesis.

• The cell grows during the Mitotic phase.

Mitosis ensures genetic continuity within eukaryotic organisms because two daughter cells containing the same number and kind of chromosomes as the parent cell are produced. Numerous errors can occur during mitosis. 

Which phase would create the MOST significant mitotic error that would result in a disruption of genetic continuity

• Prophase: The nucleolus and nuclear envelope both disappear.

• Metaphase: There is a loss of attachment or inefficient attachment of kinetochores to the spindles.

• Anaphase: Cells enter the anaphase with unattached or misaligned chromosomes.

• Telophase and Cytokinesis: Both copies of one chromosome are distributed to a single daughter cell.

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NGSS.HS-LS1-4

Each phase of the cell cycle plays a role in maintaining genetic continuity.Which statement correctly describes how a phase of mitosis contributes to genetic continuity?

• Step 1 Interphase because the chromosomes have condensed.

• Step 2 Prophase because the chromosome number has been halved.

• Step 4 Anaphase because homologous chromosomes are moving toward the poles of what will become two daughter cells.

• Step 6 Cytokinesis because the homologous chromosomes are separated into two identical daughter cells

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NGSS.HS-LS1-4

The role of mitosis is not merely to divide a cell into two daughter cells but to ensure genetic continuity from one cell generation to another cell generation. The mechanism ensuring genetic continuity is 

• Formation of cells with new chromosomes

• Formation of two daughter cells

• formation of new cells with identical DNA

• halfing the chromosomes number the new cells

Tags

NGSS.HS-LS1-4

Condensing chromosome with two chromatids held together at the kinetochore

• Prophase

• Metachase

• Anaphase

• Telophase

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NGSS.HS-LS1-4

Stationary chromosomes aligned at the equator of spindle

• Prophase

• Metaphase

• Anaphase

• Telophase

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Separating chromatid being pulled toward the pole

• Prophase

• Metaphase

• Anaphase

• Telophase

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NGSS.HS-LS1-4

Nuclear envelope re-forming around individual chromosomes

• Prophase

• Metaphase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

What is the correct order of the cell cycle 

• Cytokinesis-Mitosis-Interphase

• Interphase-cytpkinesis-mitosis

• mitosis-interphase-cytokinesis

• Interphase-mitosis-cytokinesis

Tags

NGSS.HS-LS1-4