Mitosis & Meiosis Practice Test

The purpose of mitosis is to ensure that...

a. DNA is replicated without errors

b. Each cell receives the proper number of chromosomes

c. Each cell is genetically different from the parent

Answer:

b. Each cell receives the proper number of chromosomes

Human haploid cells have:

a. 23 pairs of chromosomes

b. 46 chromosomes

c. 23 chromosomes

d. A and B

Answer:

c. 23 chromosomes

TRUE OR FALSE: Mitosis is the division of somatic cells to create new, identical cells.

Answer:

True

Humans have ____ chromosomes in their somatic cells.

a. 47

b. 46

c. 23

d. 64

Answer:

b. 46

A cell spends majority of its time in...

a. Prophase

b. Anaphase

c. Telophase

d. Interphase

Answer:

d. Interphase

Chromosomes are made of:

a. Sugar and spice

b. DNA, proteins, and nucleotides

c. DNA and cytoplasm

d. Ribsomes, Centrioles, Chromatids

Answer:

b. DNA, proteins, and nucleotides

Chromatids are joined together at a point called the ____.

a. Centriole

b. Spindle fibers

c. Chromosomes

d. Centromere

Answer:

d. Centromere

Diploid cells have:

a. 23 pairs of chromosomes

b. 46 chromosomes

c. 23 chromosomes

d. A and B

Answer:

d. A and B

The genetic information for an organism is found:

a. In the cell nucleus

b. In the cytoplasm

c. In the cell membrane

d. All of the above

Answer:

a. In the cell nucleus

The spindle fibers appears during what mitotic phase:

a. Anaphase

b. Prophase

c. Metaphase

d. Telophase

Answer:

b. Prophase

During prophase, the centrioles:

a. Join together

b. Move to center of cell and form 2 separate poles

c. Move to opposite ends of cell and form 2 separate poles

d. None of the above

Answer:

c. Move to opposite ends of cell and form 2 separate poles

The four stages of mitosis in their correct order are:

a. Prophase, Metaphase, Anaphase, Telophase

b. Prophase, Telophase, Anaphase, Metaphase

c. Anaphase, Prophase, Metaphase, Telophase

d. Telophase, Metaphase, Anaphase, Prophase

Answer:

a. Prophase, Metaphase, Anaphase, Telophase

TRUE OR FALSE: In plants and animals, the cell membrane pinches the divided cell mass into two cells.

Answer:

False

The chromosomes are pulled apart by the spindle fibers during which stage:

a. Anaphase

b. Interphase

c. Telophase

d. Prophase

Answer:

a. Anaphase

During interphase:

a. The cell grows

b. Chromosomes start to duplicate

c. The cell prepares for mitosis

d. All of the above

Answer:

d. All of the above

During metaphase:

a. The chromosomes duplicate

b. The spindle fibers attach to the centromere

c. The cell membrane closes around the new cells

d. The chromatids split at the centromere

Answer:

b. The spindle fibers attach to the centromere

TRUE OR FALSE: During metaphase, the nuclear membrane finishes breaking down.

Answer:

False

In which stage do the nuclear envelopes form around the separate sets of chromosomes:

a. Anaphase

b. Interphase

c. Telophase

d. Prophase

Answer:

c. Telophase

After mitotic cell division, or mitosis, the daughter cells contain:

a. Half of the chromosomes of the parent cell

b. The same number of chromosomes as the parent cell

c. A random number of chromosomes

d. An unknown number of chromosomes

Answer:

b. The same number of chromosomes as the parent cell

What structure inside the cell helps pull the chromatids apart:

a. Centromere

b. Spindle Fibers

c. Nucleus

d. Ribosomes

Answer:

b. Spindle Fibers

*Which of the following is an advantage of sexual reproduction?

a. The offspring are all genetically identical

b. It increase genetic diversity

c. It takes energy to find a mate and produce gametes

d. Many offspring are produced in a short time

*Answer:

b. It increase genetic diversity

*In telophase 11, cytokinesis results in...

a. Two haploid cells

b. Two diploid cells

c. Four haploid cells

d. Four diploid cells

*Answer:

c. Four haploid cells

*In humans, each gamete receives...

a. 23 pairs of chromosomes from each parent

b. One chromosomes from each of 23 pairs

c. 46 chromosomes

d. 23 homologous chromosome pairs

*Answer:

b. One chromosomes from each of 23 pairs

*Which of the following does not lead to genetic variation?

a. Binary fission

b. Random fertilization

c. Independent assortment

d. Crossing over

*Answer:

a. Binary fission

*Homologous chromosomes move towards opposite poles (ends) of a dividing cell during...

a. Anaphase 1

b. Anaphase 11

c. Metaphase 1

d. Metaphase 11

*Answer:

a. Anaphase 1

*What gamete is produced as one large cell and three polar bodies?

a. Ova (egg)

b. Spore

c. Sperm

d. Bacteria

*Answer:

a. Ova (egg)

*At which stage of meiosis, do chromatids separate and become daughter chromosomes?

a. Metaphase 1

b. Anaphase 1

c. Metaphase 11

d. Anaphase 11

*Answer:

d. Anaphase 11

*Which 2 cells would be more genetically similar to each other?

a. Two gametes produced by the same person

b. Two somatic (body) cells produced by the same person

c. Two eggs produced by the same woman

d. Two sperm produced by the same man

*Answer:

b. Two somatic (body) cells produced by the same person

*Chromosomes that are similar in size, shape, and genetic content are called which of the following:

a. Homolous chromosomes

b. Haploid chromosomes

c. Diploid chromosomes

d. Chromatin

*Answer:

a. Homolous chromosomes

*What process occurs during prophase 1 of meiosis that causes genetic variation?

a. Crossing over

b. Cytokinesis

c. Fertilization

d. Alternation of generation

*Answer:

a. Crossing over

- Is the parent haploid or diploid? (Mitosis)

- Diploid (Mitosis)

- Is the parent haploid or diploid? (Meiosis)

- Diploid (Meiosis)

- How many daughter cells are formed? (Mitosis)

- 2 (Mitosis)

- How many daughter cells are formed? (Meiosis)

- 4 (Meiosis)

- Are the daughter cells haploid or diploid? (Mitosis)

- Diploid (Mitosis)

- Are the daughter cells haploid or diploid? (Meiosis)

- Haploid (Meiosis)

- Where in the body does this type of division occur (everywhere or gonads)? (Mitosis)

- Everywhere (Mitosis)

- Where in the body does this type of division occur (everywhere or gonads)? (Meiosis)

- Gonads (Meiosis)

- What type of cells result from this division (somatic-body or gamete)? (Mitosis)

- Somatic-Body (Mitosis)

- What type of cells result from this division (somatic-body or gamete)? (Meiosis)

- Gamete (Meiosis)