Match the letter to the process that is occuring.

• Interphase: 90% of cells life

• B and D

• S phase: replicating DNA

• I

• Cytokinesis: cells divide

• A

• Mitosis: division of the nucleus

• C

• G1 / G2: growth

• J

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the importance of G1 and G2 in the cell cycle?

• G1 is when the cell divides into two daughter cells.
• G1 and G2 ensure the cell is large enough to make daughter cells that will survive

• G2 is the phase where DNA is replicated for the first time.
• G1 and G2 are phases that do not affect cell division.

Reorder the following steps of the cell cycle

• S phase

• G1

• Mitosis

• G2

• Cytokinesis

Which of the following would be evidence that mitosis has occurred?

• Presence of two daughter cells that are identical to the parent cell

• Formation of a cell wall during cytokinesis.
• Presence of a single nucleus in a cell after division.
• Absence of any visible chromosomes during division.

Tags

NGSS.HS-LS1-4

Which of the following processes would mitosis be used for?

• Growth and tissue repair. ex: a developing baby or a cut healing

• Production of gametes in meiosis.
• DNA replication during cell division.
• Photosynthesis in plants.

Tags

NGSS.HS-LS1-4

Match the following steps of mitosis to what is taking place during the step.

• nuclear envelope reforms

• Anaphase

• chromosomes align at the center of the cell

• Telophase

• chromatids separate and move to opposite poles

• Prophase

• nuclear envelope breaks down

• Metaphase

Tags

NGSS.HS-LS1-4

What phase of mitosis can be blamed for the daughter cells having an incorrect number of chromosomes? This results in conditions such as down syndrome.

• Anaphase
• Metaphase
• Telophase
• Prophase

Tags

NGSS.HS-LS1-4

What is the process that occurs during S phase that makes a copy of DNA in the cell?

• DNA transcription
• Protein synthesis
• DNA replication
• Cell division

Reorder the following steps of DNA replication.

• Sister DNA strands wind back together to form the doubel helix

• Original DNA strand is used as a template

• DNA molecule unzips along weak bonds by DNA helicase

• DNA polymerase adds new bases to be the complementary strand to the original

Match the following nitrogen bases to their pair in the base pair rules.

• Adenine

• Adenine

• Guanine

• Cytosine

• Thymine

• Thymine

• Cytosine

• Guanine