Question

meiosis review
directions: use the word bank on the left to match the correct term with the definition on the right.
a. meiosis i
b. somatic cells
c. male
d. meiosis ii
e. female
f. gametes
g. diploid
h. zygote
___ body cells
___ xx
___ xy
___ a cell with two of each kind of chromosome
___ the name of the cell created when a sperm fuses with an egg
___ separates homologous pairs of chromosomes
___ separates sister chromatids resulting in half the number of chromosomes per cell
___ sex cells

directions: identify each statement below as applying to \somatic cells\ or \gametes.\

1. another term for sex cells _______________
2. egg and sperm _______________
3. formed throughout an organisms life _______________
4. form in body cells _______________
5. identical to all of the other cells of similar function _______________
6. cells are haploid _______________

directions: identify the stage of meiosis that is described below.

1. sister chromatids line up in the middle of the cell. _______________
2. four individual nuclear membranes begin to form. _______________
3. sister chromatids are separated _______________
4. the cytoplasm is split and forms two cells _______________
5. crossing over occurs _______________
6. paired homologous chromosomes separate _______________

Explanation:

Step1: Match terms to definitions

• body cells: B. somatic cells
• XX: E. female
• XY: C. male
• a cell with two of each kind of chromosome: G. diploid
• the name of the cell created when a sperm fuses with an egg: H. zygote
• separates homologous pairs of chromosomes: A. meiosis I
• separates sister chromatids resulting in half the number of chromosomes per cell: D. meiosis II
• sex cells: F. gametes

Step2: Classify somatic/gamete statements

1. Another term for sex cells: gametes
2. Egg and sperm: gametes
3. Formed throughout an organism’s life: somatic cells
4. Form in body cells: somatic cells
5. Identical to all of the other cells of similar function: somatic cells
6. Cells are haploid: gametes

Step3: Identify meiosis stages

1. Sister chromatids line up in the middle of the cell: Metaphase II
2. Four individual nuclear membranes begin to form: Telophase II
3. Sister chromatids are separated: Anaphase II
4. The cytoplasm is split and forms two cells: Cytokinesis I
5. Crossing over occurs: Prophase I
6. Paired homologous chromosomes separate: Anaphase I

Answer:

Matching Section:

• body cells: B. somatic cells
• XX: E. female
• XY: C. male
• a cell with two of each kind of chromosome: G. diploid
• the name of the cell created when a sperm fuses with an egg: H. zygote
• separates homologous pairs of chromosomes: A. meiosis I
• separates sister chromatids resulting in half the number of chromosomes per cell: D. meiosis II
• sex cells: F. gametes

Somatic Cells/Gametes Section:

1. gametes
2. gametes
3. somatic cells
4. somatic cells
5. somatic cells
6. gametes

Meiosis Stage Section:

1. Metaphase II
2. Telophase II
3. Anaphase II
4. Cytokinesis I
5. Prophase I
6. Anaphase I