Name:______
Mitosis and Meiosis Review Worksheet
Vocabulary
cell cycle / cytokinesismitosis / interphase
Main Idea: The cell cycle has four main stages.
1.Put the letter from each of the following statements into the appropriate box to show what happens during the cell cycle.
a.G1 (Gap 1): Cells grow, carry out normal functions, and copy their organelles.
b.G2 (Gap 2): Cells go through additional growth.
c.M (Mitosis): Cells undergo cell division, which involves both mitosis and cytokinesis.
d.S (Synthesis): Cells replicated DNA.
e. I (Interphase)
2.Where does DNA synthesis happen in eukaryotic cells?
a.cytoplasmb.mitochondriac.nucleusd.Golgi apparatus
3.What two processes make up the M stage?
a.fermentationb.mitosisc.glycolysisd.cytokinesis
Main Idea: Cells divide at different rates.
4. Among different types of cells, the ______stage of the cell cycle varies most in length.
5. Consider the following information:The rate at which a particular type of cell divides is linked to the body’s need for that cell type. Skin cells are typically exposed to more damaging conditions than are liver cells. Skin cells must be replaced more often than liver cells. Therefore, which of these statements is true?
a.Skin cells and liver cells divide at the same rate.
b.Liver cells divide more often than skin cells.
c.Skin cells divide more often than liver cells.
d.Neither skin cells nor liver cells divide.
6. Circle the two things that must be coordinated for cells to stay the same size from generation to generation.
a. divisionb.growthc.repetitiond.size
7. The word “cycle” in cell cycle refers to the ______of growth, DNA duplication, and cell division that occurs in eukaryotic cells.
8. The word cytokinesis has the prefix cyto- that refers to a cell and the suffix –kinesis that refers to division or movement. Therefore, cytokinesis is the process where a cell’s cytoplasm ______.
9. The cell nucleus and its contents divide by a process called ______.
Main Idea: Mitosis and cytokinesis produce two genetically identical
daughter cells.
Circle the word or phrase that best completes the statement.
10.Interphase prepares a cell to divide by duplicating / removing its DNA and organelles.
Make up a short sentence or phrase to help you remember the order of the steps of mitosis:prophase, metaphase, anaphase, telophase.
11.______
12.Sketch the four phases of mitosis and one phase of cytokinesis. Add the labels Anaphase, Metaphase, and Telophase to the appropriate boxes below.
13.Cytokinesis differs between animal and plant cells. In animal cells, the membrane pinches together to form a cleavage furrow. In plant cells, the membrane cannot pinch together because of the ______.
Circle the word that best completes the statement.
14.DNA wraps around organizing proteins called chromosomes / histones.
15.Sister chromatids meet at the centromere / telomere, which looks pinched.
16.The ends of DNA molecules form structures called centromeres / telomeres that help prevent the loss of genes.
somatic cell / meiosis / fertilizationGamete / sex chromosome / diploid
homologous chromosome / sexual reproduction / haploid
Main Idea: You have body cells and gametes.
Fill in the blank with the word or phrase that best completes the sentence.
17. The two major groups of cell types in the human body are called ______and ______.
18.The gametes are located in the ______organs.
19.The number of chromosomes in a typical human body cell is ______.
MAIN IDEA: Your cells have autosomes and sex chromosomes.
Fill in the Concept Map below to summarize what you know about chromosomes.
Circle the word or phrase that best completes the sentence.
22.Germ / Somatic cells are haploid.
23.The haploid / diploid chromosome number in humans is 23.
Read the descriptions in the table below and then decide which column should be labeled Mitosis and which column should be labeled Meiosis.
24. / 25.Makes diploid cells. / Makes haploid cells.
Makes genetically identical cells. / Makes genetically unique cells.
Happens throughout an organism’s life. / Happens at specific times in an organism’s life.
Involved in asexual reproduction. / Involved in sexual reproduction.
26. Circle all of the following statements that are true for homologous chromosomes:
a. One is from the mother and one is from the father
b. They are a pair of chromosomes.
c. They are fertilized gametes.
d. They have the same genes, but they differ in length and appearance.
e. They have the same genes, length, and overall appearance.
27. In the space below, sketch the steps of Meiosis