Principles of Biology : Laboratory
Lab 11 : Drosophila I
Theme: Look at the theme I gave
you in Lab 7 and write a similar, short, concise theme for this
Materials and Methods: "Biology
Lab Manual" by The College Board, 2001. <cite correct page
numbers. The Drosophila lab is #7 in the lab book.>
Results: Present your data on the Monohybrid Data Sheet.
Notice, you can report on someone else's data, but you must indicate
that, and discuss what happenned (as best you know) to your flies.
Notice that the "Monohybrid Data Sheet" has a space for this
information. You should also indicate in this section (even if it is
scribbled in your lab book) how many and what type of flies were used
in your F1 cross. You should use the tables in the book to record your
data. I realize that you probably did not count how many F1 flies you
had. That is alright. Fill in the lab book as best you can.
Analysis and Conclusion Section :
In your written report, indicate what mutant you had and what
inheritance pattern it showed. Then, also, please fill out the lab book
pages 82-85, constucting a null hypothesis and then testing it using
Chi-squared on your F2 data. You own numbers might be so small that we
will reject the null hypothesis. That is OK.
Note: This lab only deals with your F1 and F2 flies with the mutation
that you were originally given to study (or a partners if you are
reporting on their data), it does not include the data for the
"dihybrid cross" -- that is the data for Lab 12.
Nov. 18, 7:30 p.m.