Download Mitosis -- Internet Lesson Name

Name: _____________________________________________________________________
Period: ______
Site 1: Meiosis OVERVIEW
Go to my website on the MFHS website. Click on Meiosis Webquest & then click on Site 1: Meiosis
Overview. Click on Reproduction and answer the following questions or fill in the blanks.
Sexual Reproduction
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New individuals are formed by a combination of two ________________ cells. (__________________).
What is fertilization? ________________________________________________________________________________
What are the gametes in females? _____________ in males? ___________________
Are the gametes haploid? ______________. What does that mean in terms of their chromosome
number? _____________________________.
What is the new individual called? ______________________________. How many chromosomes sets does
the individual have? ________________. What does diploid mean? ______________________________________.
Summarize the process of meiosis.
Click next and fill in the blanks below.
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A diploid (2n) of human chromosome consists of ________ chromosomes
The haploid (n) number of human chromosomes consists of _________ chromosomes
_____________________________ are all the chromosomes except the sex chromosomes. You receive how
many autosome chromosomes from each parent? ______________
You receive one sex chromosome from each parent. If you are a female what combination did you
receive? ______________ a male? ______________
Define karyotype:
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Haploid ( ____ ) has ____________ set of chromosomes
Diploid ( _______ ) has ______________ sets of chromosomes
Most plants and animals are made of _____________________________ cells
Eggs and sperm are ____________________________.
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Site 2: Meiosis Animation
Go back to my website. Now click on Site 2: Meiosis Animation. Click on the arrow to learn about meiosis
and answer the questions below.
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How many chromosomes does the cell in this animation start with? __________________
The homologous pairs are represented by similar _____________________________
Copies of chromosomes are held together by the __________________________________
Each chromosome finds its ________________________________
Draw “crossing over”, using your pencil to shade in the areas that exchange parts
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What phase does crossing over take place in? ________________________________________
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How many chromosomes are at each pole of the cell? ________________
During meiosis 2, chromosomes line up again along the cell’s _________________________________. What
phase does this happen in? __________________________________
Only _____________ copy of each chromosome moves toward the poles. Which means only _______
chromosomes of the original six.
New membranes form around each _______________________________.
Each cell divides, forming a total of ___________ cells, each with ___________ of the original number of
chromosomes.
Site 3: Mitosis vs. Meiosis
Go back to my website and click on Site 3: Mitosis vs. Meiosis. Read the Introduction and then click on
“Launch the Interactive”.
After viewing the animation, fill out the chart below, by placing a check in the box
or boxes.
Event
Mitosis Only
Meiosis Only
Two cell divisions
Centrioles appear
Chromosomes pair up
Spindle fibers form
Cytokinesis
Four daughter cells
Crossing over occurs
Daughter cells have the
same number of
chromosomes
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Is Interphase in Mitosis the same as Interphase I of Meiosis? _______________
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What is the difference between Prophase of Mitosis & Prophase I of Meiosis?
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What is the difference between Metaphase of Mitosis & Metaphase I of Meiosis?
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What is the difference between Anaphase of Mitosis & Anaphase I of Meiosis?
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Is Anaphase I or II more like Mitotic Anaphase? _________________________________
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Is Telophase I or II more like Mitotic Telophase? __________________________________
Both