Lab Report Guidelines

BSC 2010 Lab — Wednesday Fall 18 Data from BSC 2010 Lab Spring 2016 — Drosophila melanogaster eye color P Cross: Male red-eyed fly x female brown-eyed fly Fi Cross: All flies red-eyed F2 Data recorded:
OBSERVED Male, Red Eye 780 Male, Brown Eye 255 Female, Red Eye 1031 Female, Brown Eye 343 Total 2419 Eye color Red Eye 1811 Brown Eye 608 Sex Male 1045 Female 1374
Lab “Report” Guidelines:
Introduction section:
4XPECTED 907.125 302.375 907.125 302.375
1814.25 604.75
1209.5 1209.5
• History of fruit flies as model organism • Vocabulary (genotype, phenotype, homozygous, heterozygous, autosomal, allosomal,etc.) • Description of fruit flies (how to tell male and female apart, etc.) • Explanation of how you arrived at your “expected” numbers (based on Punnett squares performed in class) • Statement of hypothesis and how you will assess results. Based on what you know about inheritance patterns and your observation of the Fl generation, what type of inheritance pattern do you think this trait follows? What phenotypic ratio do you expect to see in the F2 generation?
Methods (OMIT)
Results:
• Report the data and stats • Add a chart/table
Discussion:
• Same criteria as a “normal” discussion section, but without mention of experimental errors or improvement. • Interpretation of individual chi-square results — where does error (if any) come frorn?”1
Works cited: 3 sources, including at least one scientific source you find on your own.

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