Name ______________ Class_______
Meiosis Graphic Organizer
Date __________
Why are sex cells produced differently than body cells? We have been studying the process
through which body cells are produced, called mitosis. Sex cells (like the sperm and egg) are
produced through a different type of cell division, called meiosis. But why have 2 different types
of cell division? What’s the point?? As you read Sexual Reproduction and Meiosis, fill in the
graphic organizer below.
Sexual Reproduction
1. Define the following vocabulary words in the section.
Sexual
Reproduction
Sperm
Egg
Fertilization
Zygote
2. Below is a flow chart showing the process of sexual reproduction. Using each of the
vocabulary words from above, fill in the blanks based on the reading. You will have one word
you do NOT use. The first one is done for you.
Sperm formed in male
reproductive organs
______ formed in female
reproductive organs
During _______________,
the egg and sperm
join to form a cell
called a ___________.
After fertilization,
______________ begins and
new organism grows
and develops.
3. How many chromosomes are in each of the following cells?
a. A human body cell? ________________
b. Human sperm cell? ________________
c. Human egg cell? __________________
4. Sum it up: How does the number of chromosomes in human sperm and egg cells compare to a
typical human body cell?
______________________________________________________________________________
Meiosis and Sex Cells
5. Define the following vocabulary words in the section.
Meiosis
6. Describe or draw diagrams to illustrate the stages of meiosis. Focus on what is happening to
the CHROMOSOMES.
Before meiosis:
Meiosis I
How many cells are there at the end of meiosis I?
Meiosis II
How many cells are there at the end of meiosis II?
End results of meiosis
How many cells are produced?
How many chromosomes does each of the new cells have compared to the original cell?