29 Jul WHAT ACTUALLY HAPPENED TO THE NUMBER OF THE MICE?
Scientists
have figured out how to extract DNA from various cells. Extracting DNA is very
important concerning heredity, legal issues, and criminal issues. In this lab,
you will simulate collecting human cells and will conduct various virtual
laboratory techniques in order to extract DNA from a human cell.
Objectives
1.
Explain natural selection.
2.
Analyze the progression of disease mutation
or traits based on the theory of natural selection.
3.
Provide the scientific names of various organisms.
Materials
Computer
with internet access
Directions:
2.
Read the information on each slide, and
follow the directions on each slide. For this exploration activity, you only
have to conduct the activity using mice.
3.
On screen 2, click on Mice.
Type
all answers directly on the data sheet.
Select
Save As, and use your last name and student ID as a file name.
Upload
the data sheet as a .doc, .docx, or .rtf file when finished.
Questions
1 – 10 are short answer questions and should be answered in 2 to 3 words or 1
to 2 complete sentences. Each question is worth 3 points for a total of30
points.
1.
What is the scientific name of the common
house mouse? (Make sure you type it correctly.)
2.
What color was most of the mice in the
beginning of the activity?
3.
Form a hypothesis as to what you think will
happen (in reference to the mice and fur color) if no cats are allowed in the
granary?
4.
What actually happened to the number of the
mice?
5.
Why do you think what you observed occurred?
6.
Form a hypothesis as to what you think will
happen (in reference to the mice and fur color) when cats are allowed into the
granary?
7.
Why did the number of yellow mice decrease?
8.
What happened to the number of yellow mice
when the granary was painted yellow?
9.
In order for the different numbers of the
mice to change, did the gene for color mutate depending on the presence of the
cat or color of paint?
10.
Did the individual mice present change their
color based on the presence of the cat or color of paint?
Question
11 is an extended response question and should be at least 200 words. Total: 20 points
11.
A few weeks pass, and there are fewer mice;
however, you still have some mice in the attic. After a few months, it seems
that there are even more mice than there were to begin with. Why do you have
more mice than you did when you first bought the cat? Why do we not see situations
such as this happening in humans as often as we see them in other organisms?
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