Cell Cycle Review

During interphase a cell grows, duplicates organelles, and

• copies DNA.
• goes thru meiosis.
• forms two cells
• goes thru mitosis

During which of the following stages do the chromosomes separate?

• Gap 1
• Gap 2
• Synthesis
• Mitosis

In a single-celled organisms, mitosis is used for

• development.
• growth.
• reproduction.
• repair.

What does a cell make during the synthesis stage of the cell cycle?

• more organelles
• a copy of its DNA
• daughter cells
• greater surface area

As a result of mitosis, each of the two new cells produced from the parent cell

• receives a few chromosomes from the parent cell
• receives an exact copy of all the chromosomes present in the parent cell
• donates a chromosome to the parent cell
• receives exactly half of the chromosomes from the parent cell

The rate at which a cell divides is linked to the body’s need for that type of cell. Skin cells are typically exposed to more damaging conditions than liver cells. Skin cells must be replaced more often than liver cells. Therefore, which of these statements is true?

• Skin cells and liver cells divide at the same rate.
• Liver cells divide more often than skin cells.
• Skin cells divide more often than liver cells.
• Neither skin cells nor liver cells divide.

The cell nucleus and its contents divide by a process called:

• mitosis
• melding
• metastasize
• Metaphase

A chromosome is one long, continuous thread of _________ that has many genes.

• RNA
• spaghetti
• DNA
• histone

Multicellular organisms use mitosis for growth, development, and

• apoptosis.
• reproduction.
• repair.
• interphase.

The ends of DNA molecules have structures that help prevent the loss of genes. They are referred to as

• telomeres
• chromosomes
• centromeres
• Cytoplasm