GED Science : Mitosis

Study concepts, example questions & explanations for GED Science

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Example Questions

Example Question #1 : Cells And Life

Which phase of mitosis involves the separation of sister chromatids? 

Possible Answers:

Anaphase

Prophase

Metaphase

Telophase

Correct answer:

Anaphase

Explanation:

Mitosis is composed of four primary phases: prophase, metaphase, anaphase, and telophase.

During prophase the chromosomes condense, the nuclear membrane dissolves, and spindle fibers begin to form. Metaphase marks the time when the chromosomes align at the center of the cell and the spindle fibers attach to the centers of the chromosomes. During anaphase, the spindle fibers contract, separating the sister chromatids and pulling them toward opposite poles of the cell. Telophase marks the beginning of cytokinesis, when the cell fully divides, and the nuclear membrane reappears.

The correct answer is anaphase.

Example Question #2 : Biology And Life Sciences

Place the steps of mitosis in the correct order.

Possible Answers:

Metaphase, prophase, anaphase, telophase

Prophase, metaphase, anaphase, telophase

Interphase, prophase, metaphase, anaphase, telophase

Prophase, interphase, metaphase, anaphase, telophase

Interphase, metaphase, prophase, anaphase, telophase

Correct answer:

Prophase, metaphase, anaphase, telophase

Explanation:

Mitosis is the process of cell replication and division for most eukaryotic cells (with the exception of gametes, which undergo meiosis). Mitosis has four main stages: prophase, metaphase, anaphase, and telophase. Interphase is the portion of the cell cycle during which cell growth and DNA replication take place; it is not considered a stage of mitosis.

During prophase, the chromosomes form and the nuclear membrane dissolves. During metaphase, the chromosomes migrate to the center of the cell and align. During anaphase, spindle fibers pull the chromatids apart, separating sister chromatids to separate sides of the cell. During telophase, the nuclear membrane re-forms around the chromatids and the cytoplasm beings to divide to create two new daughter cells.

Example Question #2 : Cells And Life

The interphase of a cell's life cycle can be divided into which of the following phases?

Possible Answers:

Replication, rest, division

Mitosis and cytokinesis

Prophase, metaphase, anaphase, and telophase

Mitosis and meiosis

G0, G1, S, and G2

Correct answer:

G0, G1, S, and G2

Explanation:

Somatic cells spend the majority of their functional lives in interphase. In preparation for division, interphase can be divided into the G1, S and G2 phases. An interphase cell can also be in G0 phase, in this phase the cell is not preparing for mitosis but is performing all other normal cell functions.

Example Question #21 : Ged Science

Which of the following is a key characteristic of metaphase?

Possible Answers:

Nuclear membranes form and the chromosomes gradually uncoil

The chromosomes move to a narrow central zone of the cell

Chromosomes separate and move toward opposite ends of the cell

Chromosomes coil so tightly that they become visible at individual structures

DNA replicates and their are two copies of each chromosome

Correct answer:

The chromosomes move to a narrow central zone of the cell

Explanation:

Metaphase is characterized by chromosomes moving to the narrow central zone of the cell called the metaphase plate/equator.

Example Question #3 : Cells And Life

Mitosis and meiosis are both processes by which cells reproduce.

Which of the following statements is true about mitosis?

Possible Answers:

Mitosis creates haploid cells that are exact copies of the original cell.

Mitosis creates diploid cells that are exact copies of the original cell.

Mitosis results in the formation of 4 unique daughter cells.

Mitosis creates gametes.

Mitosis creates haploid cells that are unique from the original cell.

Correct answer:

Mitosis creates diploid cells that are exact copies of the original cell.

Explanation:

Mitosis creates two diploid daughter cells that are identical to the original cell. This process creates somatic (body cells).

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