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Day 12

  •  
 

Fruit flies

Page history last edited by sheri 13 years, 10 months ago

Fruit Fly Genetics

 

 

Title:  Fruit Fly Genetics

 

Purpose:  To collect authentic data to determine dominant and recessive traits in fruit flies. To determine parent genotypes from F1 generation.

 

Learning Goals:

    1.   Living organisms inherit traits in patterns.

     2.   Patterns can be predicted.

 

Vocabulary:

   1.  Dominant

    2.  Recessive

      3.  Gene

      4.  Allele

    5.  Genotype

    6.  Phenotype

    7.  Punnet square

    8.  Traits

    9.  Genetics

   10.  Gregor Mendel

   11.  P1, F1, F2

 

 

Hypothesis: If I put 2 F1 generation dumpy winged fruit flies with 2 F1 generation sepia eyed fruit flies in a container, then I can determine what P1 generations crossed by comparing the dominant and recessive traits of the F2 generation as well as the ratio of genotypes.

 

 

Procedure:

Data: Observations

Day one

  •     Students prepared fruit fly medium and fruit fly containers.
  •   Flies were anestisized and 2 dumpy winged and 2 sepia eyed were placed in the container. 
  •   Flies were left to wake up and cross for 10 days.

 

 Day ten, (Tuesday)and eleven (Wednesday)

 

  • Observations

     

Fruit Flies Qualitative Quantitative

Mrs. Murphy 1st hour

Group: 1

 small,big wings,red eyes,quick

 three f1 live

2 f2 hatching

Mrs. Murphy 2nd hour

Group:2

   

Mrs. Murphy 3rd hour

Group: 3

 Two fruit flys with red eyes and two with balck eyes.  2 Dumpy winged fruit flys and 2 sepia eyed fruit flys. 

Mrs. Ebert 4th hour

Group:

D K

 1 fruit fly had red eyes and 1 had black eyes.

 3 live f1

 13 live f2

Mrs. Ebert 6th hour

Group: VS

 The larve is white with a yellow tint

 Live F1=1

Mrs. Ebert 7th hour

Group: AJ

 No signs of life yet.  Live F1= 6

Mrs. Ebert's 7th hour

Group: MR

   
Fruit Flies Qualitative Quantitative

Mrs. Murphy 1st

Group:

 larva squirming,1 burrows,

 1 f1 left

5 f2 Alive

Mrs. Murphy 2nd

Group:

   

Mrs. Murphy 3rd hr.

Group:

 The larva is small yellowish white, move slow.  25+ larva

Mrs. Ebert 4th hr.

Group:DK

   13+ larva

Mrs. Ebert 6th hr

Group:V.S.

Flys are brown with a small set of wings. Most of the larvae are all over the walls of the tube. They are turning a darker brown. F2=2 

Mrs. Ebert 7th hr.

Group:JA

Lots of trails. A couple of noticable larva. The larva is almost clear.

 

 5+ Larva

 

 

Day 16

  •    Observations

    Mrs. Murphy    Qualitative Quantitative

    Mrs. Murphy's 1st. hour Group:

     AB

     dry

    Smells

    over 50 paupa 

    no F2's but F3's are turning into paupa's

    Mrs. Murphy's 2nd hhour Group:    
    Mrs. Murphy's 3rd Hour Group:  Mostly Black eyed fruit flys, long wings, and tan and black bodys

    40+ fruit flys

     

    Mrs. Ebert's 4th hour

    Group:

     DK

       

    Mrs. Ebert's 6th hour

    Group:SV

     pupae are really dark.

     

     F2=2

    Mrs. Ebert's 7th hour

    Group:JA  

     flies are light brown, the pupae are dark brownish and the larva are white.

    40 flies+

    80 pupae+

    5 larva+

     

 

 

Data

 

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  •  

    1st Hour

     AB

    • when F1 die F2 are born

    • third day tube is filled with paupa

      12/19

      The food is getting dry and the paupa's are starting to mature into adult fruit flies. 

      Their are many paupas and i dont think thier is enough room for them all when they hatch. The paupa are starting to climb the walls and the larvae are burrowing and and staying to hatch into a juevinialle friut flies.

      I also learned that the fruit flies reproduce very fast from the p1 generation.

      1/4/08

      We had 1 dumpy winged fruit fly and 1 not dumpy winged fruit fly! They were both Sepia flys!


    • 2nd Hour

      • TK

        12/12

        • When we went outside to let our fruit fly  parents out of the cage some kids were messing around and nocked our babie fruit flies out of the tube. We asked them to not step on are babies but they did eneyway. And now we don't have are own babies we got new ones though.  
        • 12/14

         

      • The new ones are starting to change color. And they are starting to move.  All the ones that are in the blue food are moving around and there is one coming up from eating.
      •  

      • 12/19
      •  

      • one of the babby fruit flies has hatch anad is up and fliying around and eating healthy like an adult. The fruit fly has long clear wings, he is brounish/tanish, and is a vaery good sized fly. All the other babby flys has not hatched yet but are squirming around and eating healthy.
      •  

      • 1/9/08
      • All of our babies hached and were pretty healthy. In the group of all 193 babby fruit flys we had 2 albino babbys and 26 with red eyes and 165 with sepia eyes. WE also have 2 that are dumpy with red eyes and 0 that are dumpy with  sepia eyes.
      •  


         3rd Hour - KJ

              12/12

        • We let the   f1 family out and the f2 larva are left.

           12/14

        • The larva are starting to change colors, and starting to move faster and almost ready to hatch.
        • 12/19 Most of the f2 larva hatched and there are about 40 fruit flys alive and still more larva!

        4th hour - DK

            12/12

                There were 3 fly's F1 and we let them go and now there are none. We have 13 f2 larva  left in the tube  after we let the parents go. Only 2 of the 13 larva were  moving.

            12/14

                 There are only 13 f2 lava in the tube. There color is white and they have started to chage to a darker color. They are starting to move around. Now 1/4 of the larva               are moving.

            12/19

                   We gave our larva more food and water so they can survive over christmas break.

         


        6th hour

        • VS lab
        • We have two flies and many pupae on the wall
        • The larvae that are left are moving and eating fast.
        • Around 18 F2 pupae that are predicted to hatch over the weekend.
        •  The pupae are close to hatching.
        •  They look are a dark brown. The larvae are close to becoming a pupae.
        • We think that some of the pupae might not survive over the Christmas Break, becouse of the position they are in.
        • None of the pupae have hatched since our last observation but most of the larvae has become pupae.

           


        • JCs Lab-Purebred Dumpywing
        • We have two flies and no pupae.
        • Light brown and red.
        • Flies are less energetic. Not flying as much.
        • Chestnut colored eyes.
        • We now have only one fly. One has died.
        • The fly flies around; more energetic.
        • Eats a lot of food.
        • Not alot of flies were born. We only saw two alive. I thought there would be more.

           

        • If there were more, when would they breed? Would they also be dumpywing?
        • Will the flies grow even more different?
        •  


           

          7th Hour

          • JAs lab

          • We expect to learn  how  generations  change over time, or through out offspring.
          • We have already learned that some times the parents are all female or male so they can't reproduce.
          • We have just learned that flies don't reproduce all at the same time.
          • We have learned that it takes awhile for the fies to change from egg to larva to pupae to fly.
          • 12/19
          • We lost our bottle so Ms. Ebert gave us her's.
          • There are many flies. They are brown. Some darker then other.
          • There are many larva. They are almost ready to hatch. The larva some are yellowish brown and some are whiteish yellow.
          • The food had dried so we put just a couple of drops of water in the food so that they live pass the Christmas break.

             

          • 1/4/08
          • Today we opened the container and counted all the dumpy and non-dumpy and then the not sepia and sepia.
          • We had 39 flies.
          • We had to kill them after we counted them.
          •  

             


            7th Hour

            • MRs lab

              •  We expect to learn how generations change through mating different phenotypes.
              •  


                 

                 

                 

                Comments (1)

                Anonymous said

                at 11:24 pm on Dec 15, 2007

                The students are awesome! I really believe you are learning the basics of genetics. Great Job, keep it up!

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