Classical Genetics Simulator - instructors can pay for an account, but many of the features are free, students can cross populations of flies and perform Chi Square analysis Rabbit Genetics Simuation - Just crosses rabbits that are black or white, probably more useful as a demo.
Return to the lab and choose "use fly in new mating" under the microscope view.
We guarantee live delivery and will replace if necessary. Put Fly Predators near any spoiled hay, feed, round bale feeders, grass clippings, etc. Choose an allele found on the sex chromosome. Sprinkle them out near all areas where there is, or was, fresh manure or other rotting Fly lab instructions matter that remains moist.
For every adult fly you see, half of them will be females who can lay eggs during their 21 day lifetime. They should be challenged to theorize on how they acquired certain traits. What phenotypic ratio did you observe in the F1 generation? They are much more sensitive to pesticides than pest files.
What did you observe in the F1 generation? Perform a chi-square analysis. What was the trihybrid phenotypic ratio produced for the F2 generation? These will not harm Fly Predators. State your chi-square value, degrees of freedom, p-value and whether you rejected or failed to reject this ratio.
How does this differ from non-lethal alleles? Was this what you expected? Brown Eyes Curved Wings 1. Release your Fly Predators where pest flies are reproducing. Why or why not? Choose ONE trait from the autosomal mutations on the table to study by ordering flies of the mutant strain and crossing it with a wild type fly.
Put Fly Predators out proportionally to how much manure or rotting organic matter is in each area: What are the genotypes and phenotypes of your F1 generation? Put attractant traps usually water filled away from your house or barn as these draw flies from a wide area.
Even if you muck out daily, put some where manure was if the spot is kept moist from urine. How can you tell from the cross? If you have free range chickens or ants put the Fly Predators in open sacks hung off the ground.
Try to dry up moist areas such as near water troughs, leaky faucets, under stall mats, etc. Computers with Internet Access. What are the observed outcomes? Once each team has recorded sufficient data and has reached a conclusion about the inheritance of that trait, a research report on their findings should be completed.
Fly Predators can travel up to feet: Perform an F1 cross between two flies with the aristapedia phenotype. State your hypothesis, chi-square value, degrees of freedom, p-value, and whether your hypothesis was rejected or not reject.
Teacher led dialogue should be directed toward the inheritance of traits. Be able to explain these varied results on your lab report. They look like tiny little ants with wings.After emergence starts, release them in the next day or two: Holding them longer than 5 days after that may reduce their effectiveness.
Sometimes they are quite stinky, but that does not indicate a problem. Drosophila melanogaster, the fruit fly, is an excellent organism for genetics studies because it instructor‟s instructions on how to set up and label a culture tube. Take 3 – 5 flies of each Lab 11 Drosophila melanogaster.
LAB 11 - Drosophila Genetics. Assignment 1: Getting to Know FlyLab: Performing Monohybrid, Dihybrid, and Trihybrid Crosses 1.c. Based on what you know about the principles of Mendelian genetics, predict the phenotypic ratio that you would expect to see for the F1 offspring of this cross and describe the phenotype of each fly.
1.d. several ways in which you can manipulate the fly to examine it more closely. a. Shift + Left click allows you to center the fly in the field of view. b. Ctrl + Left click allows you to rotate the fly so that you can see certain sections of the body more clearly.
7. Instructions for doing a virtual lab on fruit flies where students choose parents and breed F1 and F2 generations. Students follow instructions within the simulation while they answer the lab questions on this page.
Each team will be researching the inheritance patterns of a single trait in a population of flies. Each research team will be assigned one of the following traits for research (these are the nine traits the Virtual FlyLab makes available for crossing).Download