Name _______________________ Period _______
iPad Meiosis Tutorial and Game
Site 2 - Sumanas Inc., Animation of Meiosis
http://www.sumanasinc.com/ ---> go to animation gallery --> go to general biology --> Meiosis
1. Read the introduction. Explain how sexual reproduction results in unique offspring.
(Click the "STEP THROUGH" button)
2. DNA replication takes place during which phase? __________________
3. Meiosis consists of two cell divisions: _________________ & _________________
4. In Prophase I, each cell is [diploid / haploid]
.
5. Centrosomes (aka centrioles) migrate to _______________________________
6. The pairing of homologous chromosomes is called: ________________________
7. Crossing over occurs during which phase? __________________
8. What happens in metaphase I _________________________________________
9. What happens during anaphase I _______________________________________
10. In prophase II, each cells is [ diploid / haploid ]
11. In metaphase II, chromosomes line up in [ single | double ] file.
.
.
12. What happens during telophase II? ______________________________________
13. (Click to Conclusion). Each of the four daughter cells produced by meiosis is [ identical / unique ]
(Click to Quiz)
14. With respect to meiosis, when does DNA replication occur? ____________________
15. When does crossing over occur? _________________
16. During which phase do chromosomes line up along the equator? __________________
17. During which phase does the nuclear membrane form around the chromosomes? ___________
MEIOSIS GAME
Purpose: Snurfles, just like any other organism, must reproduce in order to continue as
a species! But how does this happen? By the end of this game, you will understand how
MEIOSIS and FERTILIZATION work to make offspring! You will also see how GENETIC
characteristics are passed on through these processes and the connection between
meiosis and genetics!
TAB 1: Meiosis and Genetics Interactive
First, you need to learn about Meiosis and Genetics and how they are connected. This is an
easy level 1 but it is RECOMMENDED that you complete it.
INTERPHASE
Sketch a cell in Interphase
*Which of the following is true of
Interphase? Circle the correct
answer
A. It is a part of Meiosis
B. It occurs before Meiosis
C. The Cell does normal cell
activities during interphase.
D. Both B and C.
What is going in the nucleus during Interphase?
The uncoiled stringy DNA found in the nucleus during interphase is called _________________
Chromatin from Mom is ______________ (what color?)
Chromatin from Dad is ________________ (what color?)
How many pieces of chromatin do your cells have ? _________
Where did they come from? _______________________________________________
What determines the traits of an organism? _______________________
What do the letters G and g represent? (Different forms of alleles)
What are two variations for fur in Snurfles?
What must happens before meiosis? ________________________________________
Sketch unreplicated
DNA/chromatin
Sketch the replication/replicated DNA
*Which of the following are true
statements?
*Why do organisms do Meiosis?
A. DNA replicates during
Interphase
B. Chromatin is made of DNA.
C. Genes are found on DNA.
D. All of the above.
A. To make more skin and muscles cells
in their bodies.
B. To make gametes (sperm and eggs)
C. Just for fun!
D. All of the above.
How many divisions are there in meiosis? ________________ Name them:
Meiosis I _______________, _____________________, _______________________, _____________________
Meiosis II _______________, _____________________, _______________________, _____________________
What helps you to remember the order of the phases? __________________________________
Meiosis I and Meiosis II both have the same order for their phases. Which is the correct
one ? _________________
Sketch a cell in Prophase I
The major event in Prophase I :
1. Chromosomes condense
2. chromosomes move to the
opposite ends of the cells
3. nucleus disintegrate
Why do chromosomes condense during prophase I meiosis?
______________________________________________
Sketch chromosomes before
condensation
Sketch Homologous chromosomes
Define a TETRAD
Sketch chromosomes after condensation
Sketch Sister chromatid
Draw a TETRAD
Circle your answer (more than one)
* What important events take place during PROPHASE I:
I. Chromatin condenses to form visible chromosomes.
II. The nucleus and nucleolus disintegrate.
III. Homologous chromosomes pair up to form Tetrads.
IV. Chromosomes line up down the middle of the cell.
METAPHASE I:
Events in Metaphase I
(tetrads line up on the equator)
Anaphase I:
What happens during Anaphase I?
Sketch Metaphase I
Sketch using colors Anaphase I
Telophase I:
What happens during Telophase I?
Define Cytokinesis
Draw
Draw this phase:
How many chromosomes does
each haploid cell have?
Draw two haploid cells at the end of
Meiosis I
Draw a diploid cell (at the start
of meiosis I)
Draw 2 haploid cells (end result of
meiosis I)
PROPHASE II
* How is Prophase I different than Prophase II?
A. Tetrads do not form in Prophase II
B. The nucleus does not go away during prophase II.
C. There area no chromosomes during Prophase II.
D. All of the above.
Describe what Happens during
Metaphase II:
Sketch Metaphase II
Describe what Happens during
Anaphase II:
Sketch
Describe what Happens during
Telophase II: Major Events:
Sketch
1)
2)
3)
Sketch the final results of meisosis
What are the final results after
Telophase II and Cytokenisis?
Female gametes area called ___________
PRACTICE WITH THE MALE now –it goes much faster!
Male gametes area called ____________
Two snurfles falling in love…
Skip the Genetics section for now…just take the quiz.
QUIZ NEXT The Meiosis and Genetics QUIZ: Test your knowledge by taking this 21
question quiz
Enter your name
Take a screen shot of your score.
Show your teacher--This will be your grade!
TAB 2: The Chromosome Quandary
You will quickly learn about chromosomes!
Score Sheet: You can see your score for each level and overall score. You will see what you
need to work on and study more for the test!