CELL BIOLOGY (Bio 330) MEIOSIS
GIZMO STUDENT EXPLORATION
SHEET, BARRY UNIVERSITY.
, Name: Date:
Student Exploration: Meiosis
Directions: Follow the instructions to go through the simulation. Respond to the questions and
prompts in the orange boxes.
Vocabulary: anaphase, chromosome, crossover, cytokinesis, diploid, DNA, dominant, gamete, genotype, germ
cell, haploid, homologous chromosomes, interphase, meiosis, metaphase, mitosis, ovum, phenotype,
prophase, recessive, sister chromatid, sperm cell, telophase, zygote
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. During mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell
so that each of the daughter cells has a complete set of chromosomes?
The cells replicate the chromosomes ad split the copied chromosomes equally so that
each daughter cell has a full set.
2. During sexual reproduction, two sex cells fuse to create a fertilized cell with a complete set of
chromosomes. What must be true about the number of chromosomes in each sex cell?
There has to be 46 chromosomes in each cell.
Gizmo Warm-up
Meiosis is a type of cell division that results in four daughter cells with half
as many chromosomes as the parent cell. These daughter cells mature into
gametes, or sex cells. In the Meiosis Gizmo, you will learn the steps in
meiosis and experiment to produce customized sex cells and offspring.
On the STEPS tab, click Male. You are looking at a germ cell, or a cell
that will undergo meiosis to become gametes.
1. Read the description of interphase at the bottom of the Gizmo. What happens to the cell at the beginning
of interphase?
It synthesizes the mRNA.
2. Click on the DNA in the nucleus of the cell. Describe what happens.
It expands and copies the cell.
3. Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
GIZMO STUDENT EXPLORATION
SHEET, BARRY UNIVERSITY.
, Name: Date:
Student Exploration: Meiosis
Directions: Follow the instructions to go through the simulation. Respond to the questions and
prompts in the orange boxes.
Vocabulary: anaphase, chromosome, crossover, cytokinesis, diploid, DNA, dominant, gamete, genotype, germ
cell, haploid, homologous chromosomes, interphase, meiosis, metaphase, mitosis, ovum, phenotype,
prophase, recessive, sister chromatid, sperm cell, telophase, zygote
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. During mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell
so that each of the daughter cells has a complete set of chromosomes?
The cells replicate the chromosomes ad split the copied chromosomes equally so that
each daughter cell has a full set.
2. During sexual reproduction, two sex cells fuse to create a fertilized cell with a complete set of
chromosomes. What must be true about the number of chromosomes in each sex cell?
There has to be 46 chromosomes in each cell.
Gizmo Warm-up
Meiosis is a type of cell division that results in four daughter cells with half
as many chromosomes as the parent cell. These daughter cells mature into
gametes, or sex cells. In the Meiosis Gizmo, you will learn the steps in
meiosis and experiment to produce customized sex cells and offspring.
On the STEPS tab, click Male. You are looking at a germ cell, or a cell
that will undergo meiosis to become gametes.
1. Read the description of interphase at the bottom of the Gizmo. What happens to the cell at the beginning
of interphase?
It synthesizes the mRNA.
2. Click on the DNA in the nucleus of the cell. Describe what happens.
It expands and copies the cell.
3. Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
