Cell Cycle AP Bio

What is the role of the spindle during mitosis?

• It divides the cell in half.

• It duplicates the DNA.

• It breaks down the nuclear membrane.

• It helps separate the chromosomes.

Tags

NGSS.HS-LS1-4

When a chromosome is NOT dividing, what form does it take?

• chromatid

• chromatin

• chromosome

• centromere

The point of attachment between two sister chromatids is called

• kinetochore

• centromere

• chromosome

• spindle

Tags

NGSS.HS-LS1-4

G1 is associated with what event?

• normal growth and cell function

• DNA replication

• The beginning of mitosis

• breakdown of the nuclear membrane

Why do cells such as neurons divide very rarely?

• They no longer have active nuclei

• They have entered G0

• they can no longer break down cyclins

• They no longer produce MPF

Cells from cancerous tumors usually have an unusual number of chromosomes, and unusual looking chromosomes. What could explain this?

• cancer cells are in G0

• cancer cells are arrested in the S phase

• cell cycle check points are not in place

• transformation introduces new chromosomes to cells

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

What does NOT happen during interphase?

• growth

• DNA replication 

• obtaining nutrients

• cell divison

Phase involving formation of nuclear envelope around separated chromosomes

• Anaphase

• Metaphase

• Prophase

• Telophase

Tags

NGSS.HS-LS1-4

In what phase of the cell cycle does DNA replication take place?

• G1

• S

• G2

• M

The enzyme that unzips the DNA to prepare for replication

• helicase

• replicase

• polymerase

• synthase