Genetics Test update Chromosomal Onepager due Monday April

Genetics Test update!! Chromosomal One-pager due Monday (April 1 st)! Test Date: April 2 nd (Tuesday we get back from Spring Break) AND April 3 rd B Day How to study for the test: -all genetics unit notes -study notecards on my website -all practice worksheet (Punnett squares, pedigree, meiosis) -3 x 5 notecard with any information you want to use on the test.

Fruit Fly Genetics Lab

Male Female Determining Fruit Fly Gender

Fruit Fly Genetics Lab Report Rubric (+2) (+10) Title Introduction/Background Data (observations & drawings) Discussion/Conclusion

Cross #1: Wings x Wingless (apterous) # of WINGS Male Individual # of WINGLESS (apterous) Male Female Class Individual Class F 1 F 2 Cross #2: Red eyes x White eyes # of red eyes Male Individual F 1 F 2 Class # of white eyes Female Individual Class Male Individual Female Class Individual Class

Fruit Fly Observations ØEvidence of F 2 generation? ØDid any flies die? Which ones? (red eyes, white eyes, etc. ) ØDescribe the activity level of your flies. ØAre the flies crawling, flying, still? ØAdd any other addition information you can think of.

Fruit Fly Larva & Pupa observations Carefully remove ONE larva and pupa from your vial. View the two organisms under the dissecting scope. Draw a sketch & write at least THREE observations.

Background Information (paragraph form) Lab Purpose 1. Determine the genotypes and phenotypes of the Parent Generation (for both crosses). 2. Identify how each trait (eye color & wing presence) is inherited? This is a brief section that should include the purpose of the experiment and any background information to help your reader understand the science of your experiment. § Make sure to define any biology terms in this section. Ø -genes, chromosomes, alleles, inheritance, sex-linked, dominant, recessive, etc. How do traits get passed on? § Why are fruit flies a great organism for studying genetics? § Research about fruit flies and write about their features, life cycle, common mutations, environment, etc. §

Information to Help write your background

Fruit Fly Lab-Final Day To-do List: 1. 2. 3. 4. 5. Get into your fruit lab group… Go to your same lab station. Identify ALL F 2 Generation traits. Write your teams data under the document camera. Dump all F 2 flies into the Fly Morgue (located on the front table) Clean up: -dump all food, pupa, and larva into the fly trash. Scrape out all materials. -Wash the empty vial with soap and water. Cross #1 Cross #2

Lab Discussion/Conclusion: This is probably the most challenging section to write. This must be written in paragraph form and is the only section that will involve any interpretation of the data. You must explain why the data does or does not make sense, and what possible sources of error might exist. You should also try to suggest a follow-up experiment that could further clarify your understanding the material or even improve the experiment as presented. All conclusion questions are to be answered in this section. Questions (include in your DISCUSSION): 1. Create a Punnett of the parent generation and F 1 generation for each cross. 2. Determine the genotypes and phenotypes of the Parent Generation (for both crosses). Support with evidence from your lab. 3. List some reasons why expected ratios may not have matched observed ratios for this lab. 4. Identify how each trait (eye color & wing presence) is inherited? Support with lab evidence. 5. Let’s say you found a few brown-eyed females in the F 2 generation of cross #2 (white eyed x red eyed). The brown eye color resulted from a mutational change. Explain how a mutation can be passed on to the next generation. (include the following terms in your description: meiosis, independent assortment, gametes) 6. In cross #1, we crossed heterozygous winged flies to produce the F 2 generation. Which type of F 2 offspring directly support Mendel’s law of segregation. Explain. 7. Write one or two sentences to wrap up your conclusion. Focus on the big ideas of genetics.

Cross #1: Wings x Wingless (apterous) # of WINGS Male Individual # of WINGLESS (apterous) Male Female Class Individual Class F 1 10 28 F 2 109 179 3 A Class Data Individual Class Individual 26 Class 28 Cross #2: Red eyes x White eyes # of red eyes Male Individual Class F 1 F 2 88 # of white eyes Female Individual Class 20 84 Male Individual Female Class 18 99 Individual Class 70

Cross #1: Wings x Wingless (apterous) # of WINGS Male Individual # of WINGLESS (apterous) Male Female Class Individual Class F 1 11 19 F 2 60 45 1 B Class Data Individual Class Individual 5 Class 4 Cross #2: Red eyes x White eyes # of red eyes Male Individual Class F 1 F 2 48 # of white eyes Female Individual Class 20 62 Male Individual Female Class 12 56 Individual Class 51

Cross #1: Wings x Wingless (apterous) # of WINGS Male Individual # of WINGLESS (apterous) Male Female Class Individual Class F 1 33 30 F 2 88 82 2 B Class Data Individual Class Individual 20 Class 9 Cross #2: Red eyes x White eyes # of red eyes Male Individual Class F 1 F 2 54 # of white eyes Female Individual Class 17 46 Male Individual Female Class 18 57 Individual Class 47

4 B Class Data Cross #1: Wings x Wingless (apterous) # of WINGS Male Individual # of WINGLESS (apterous) Male Female Class Individual Class F 1 40 32 F 2 107 142 Individual Class Individual 14 Class 19 Cross #2: Red eyes x White eyes # of red eyes Male Individual Class F 1 F 2 49 # of white eyes Female Individual Class 24 48 Male Individual Female Class 18 70 Individual Class 52