ATH 2100L Mendelian Inheritance Assignment
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ATH 2100L Mendelian Inheritance Assignment
Name: Lab Section:
Description: In this lab you will practice using Punnett Squares in a chicken breeding experiment.
SIMPLE TRAITS
Please read the following statement and answer the question fully.
- According to the Mendelian principle of dominance and recessiveness, a dominant allele is always expressed over a recessive allele in a genotype controlling for discrete phenotypes. As such, do you think that dominant traits are always more common than recessive traits in a population? Why or why not? (4 points)
PUNNETT SQUARES
As we learned this week, there are mathematical ways of determining how traits are passed between generations. In this section of the lab, you will work with Punnett Squares to breed speckled chickens. Currently, you have two roosters, one brown and one white to breed with your speckled hen. You know from reading a genetics paper that the speckled allele is “a,” meaning that you need a homozygous recessive genotype of “aa” to produce a speckled offspring. You also know that the brown rooster you will be breeding is heterozygous for the “brown phenotype” and the white rooster you will be breeding is homozygous dominant for the “white phenotype.” Using Punnett Squares, please simulate the breeding of your brown rooster with your speckled hen and then your white rooster with your speckled hen. Afterwards, answer the questions on the following page. (10 points)
- Which rooster is more likely to contribute to the production of speckled offspring? How do you know? (3 points)
- What are the odds for each breeding experiment that speckled offspring will be produced? (Please write your answers as %) (3 points)
ATH 2100L Mendelian Inheritance Assignment
RUBRIC
Excellent Quality
95-100%
Introduction 45-41 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Literature Support
91-84 points
The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.
Methodology
58-53 points
Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.
Average Score
50-85%
40-38 points
More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.
83-76 points
Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.
52-49 points
Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.
Poor Quality
0-45%
37-1 points
The background and/or significance are missing. No search history information is provided.
75-1 points
Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.
48-1 points
There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met
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