Biology 105 – Human Biology
Session:
Section:
Class Location:
Days / Time:
Instructor:
Spring 2008
55244 4 Units
UVC1 St. Helena
F 9:00 AM – 3:50 PM
RIDDELL
Student ID#: 123456
Student Name: BEE BEADS
Team Name: Reproducers
Lab Assignment #: 10
Lab Title: Genetic Frequency
Date: 080405.1
This is an incomplete example only …………………………
Purpose / Objective(s):

Model genetic frequency in 2 separate conditions.

Hypothesis (ese):

Random and selective pressure should result in frequencies that confirm Hardy Weinberg principles.
Materials / Subjects / Specimens:


Colored beads were selected from known starting populations.
The principle components and their representation and base case populations are as follows

Genotype
Homozygous Dominant
Heterozygous
Homozygous Recessive
Beads
Black
Black & White
White
Symbol
BB
Bb
bb
Count
50
50 of each
50
Methods / Tools / Instrumentation / Procedures:
General




Beads were randomly selected for 4 successive filial generations.
Each successive generation was artificially decreased in order to introduce randomness.
2 of the following 3 cases were modeled numerically. Results record percentage of populations for
each of the 3 geneotypes in each of the 3 cases.
Original data is included as Attachment 1. See RAW Data in Appendix.
Specific Cases
CASE /
Scenario
Name
Selection Pressure
1
BASE
None with total replacement survivorship
2
RANDOM
Random with a decreasing number of total
survivors
3
-20% Recessive
Case 2 with forced 20% reduction in
homozygous recessive
4
- 100% recessive
Case 2 with forced 100% reduction in
homozygous recessive
Page 1 of 5
106745027
Biology 105 – Human Biology
Session:
Section:
Class Location:
Days / Time:
Instructor:
Spring 2008
55244 4 Units
UVC1 St. Helena
F 9:00 AM – 3:50 PM
RIDDELL
Results




Table 1 lists the percentage of survivor geneotypes for all four cases in the first through 5th
generations.
Figure 1 charts the dat from Table 1 for the comparison of all four cases of homozygous dominat
genotype frequencys. It is interesting to note that………………………………..
Table 2 shows………………….
Table 3 shows……………………………….

Fugure 2 shows………………………
Figure 3 shows………………………………….

A comparison of Homozygous dominant with homozygous recessive data illustrates…………………..

List summary statements of important measurements, findings, etc,.
Refer to tables and graphs and drawings of your data. Be specific and direct the reader to the data of
specific interest. Import abbreviated tables and graphs / charts into this section – detailed tables and
charts can be included in the Attachments section.
Be sure to number and name your tables, graphs and illustrations.
Be sure to make at least one statement regarding every table and graph and drawing / illustration in
this section.




Analysis / Discussion:






What was common to all cases?
What was unique?
Make a statement for what your results demonstrate.
Answer the question, “what is the key learning we receive from this data?”
Is your hypothesis validated or not?
Summarize your key understanding.
Conclusions / Further Considerations:


Answer the question, “so what?”
What other information / research / experiment does this data suggest that we do?
Page 2 of 5
106745027
Biology 105 – Human Biology
Session:
Section:
Class Location:
Days / Time:
Instructor:
Spring 2008
55244 4 Units
UVC1 St. Helena
F 9:00 AM – 3:50 PM
RIDDELL
ATTACHMENTS
Summary / Formal / Conclusive Results / Tables, Charts
Table 1. Genotype…………………………………
What does Table 1 show????????
What might be interesting to note or point out to the reader of this data?
Can you highlight it or indicate a call out?
BASE
CASE
Generation
1
Genotype
RANDOM
4
5
25%
25%
25%
25%
25%
Bb
50%
50%
50%
50%
50%
bb
25%
25%
25%
25%
25%
100%
100%
100%
100%
100%
BB
25.0%
28.6%
26.9%
24.0%
33.3%
Bb
56.3%
53.6%
53.8%
56.0%
44.4%
bb
18.8%
17.9%
19.2%
20.0%
22.2%
100.0%
100.0%
100.0%
100.0%
100.0%
BB
25.0%
25.5%
29.6%
28.6%
26.7%
Bb
41.7%
45.5%
46.3%
51.0%
55.6%
bb
33.3%
29.1%
24.1%
20.4%
17.8%
100.0%
100.0%
100.0%
100.0%
100.0%
BB
25.0%
28.6%
34.8%
34.1%
31.6%
Bb
41.7%
51.0%
54.3%
61.0%
65.8%
bb
33.3%
20.4%
10.9%
4.9%
2.6%
100.00%
100.00%
100.00%
100.00%
100.00%
T
-20% Rec.
3
BB
T
T
-100% Rec.
2
T
Page 3 of 5
106745027
Biology 105 – Human Biology
Session:
Section:
Class Location:
Days / Time:
Instructor:
Spring 2008
55244 4 Units
UVC1 St. Helena
F 9:00 AM – 3:50 PM
RIDDELL
Figure 1. Homozygous Dominant genotype. The dynamics in the four cases for the homozygous
dominant genotype are shown ibelow. T is interesting to note that …………………………
Homozygous Doiminant BB
40%
38%
36%
Percent Survival
34%
32%
30%
28%
26%
24%
22%
20%
1
2
3
4
5
Generations
Base
Random
20% Negative
100% Negative
Observations:
1.
2.
3.
4.
A
B
C
D
Raw Data / Original Measurements:
Attachment 1 Populations of beads for each scenario
Page 4 of 5
106745027
Biology 105 – Human Biology
Data
Base case
BB
Bb
bb
T
1
Session:
Section:
Class Location:
Days / Time:
Instructor:
2
3
4
5
25
50
25
100
25
50
25
100
25
50
25
100
25
50
25
100
25
50
25
100
1
16
36
12
64
2
16
30
10
56
3
14
28
10
52
4
12
28
10
50
5
15
20
10
45
-20%
1
15
25
20
60
2
14
25
16
55
3
16
25
13
54
4
14
25
10
49
5
12
25
8
45
-100%
1
15
25
20
60
2
14
25
10
49
3
16
25
5
46
4
14
25
2
41
5
12
25
1
38
Data
Random
BB
Bb
bb
T
Spring 2008
55244 4 Units
UVC1 St. Helena
F 9:00 AM – 3:50 PM
RIDDELL
Data
BB
Bb
bb
T
Data
BB
Bb
bb
T
Drawings / Diagrams:
1.
2.
3.
4.
A
B
C
D
Detailed Results / Analyses:
1.
2.
3.
4.
A
B
C
D
Notes:
1.
2.
3.
4.
A
B
C
D
Page 5 of 5
106745027