What is a fly lab?
Fly Lab. The Fly Lab studies the evolutionary biology of sex and death, mainly using the fruit fly, Drosophila melanogaster, as a model organism.
What is the purpose of the fruit fly experiment?
Morgan decided to use fruit flies to study how physical traits (for example, eye color) were transmitted from parents to offspring, and he was able to elegantly show that genes are stored in chromosomes and form the basis of heredity. This work won him a Nobel prize in 1933 and marked the birth of modern genetics.
Why is fruit fly used for genetics?
Fruit flies have a very simple genetic structure, which makes them ideal for genetic research. It is useful to study mutant fruit flies, as their quick reproduction rate allows scientists to observe the advantages and disadvantages of certain mutations.
How do you tell if a fly is male or female?
The most simple characteristic to use to differentiate the two is to look at the genitalia of the flies. Males have dark, rounded genitalia at the tip of their abdomen, whereas females have light, pointed genitalia.
Why did the researcher conduct experiment using flies?
He was the first to discover sex-linkage and genetic recombination, which placed the small fly in the forefront of genetic research. Due to it’s small size, ease of culture and short generation time, geneticists have been using Drosophila ever since.
Why do female fruit flies have to be virgins?
Virgin flies are needed to make sure that that the crosses are being appropriately made with the females using the desired sperms to fertilize their eggs. Female Drosophila are considered virgin eight to ten hours after they hatch from their pupa because during that time they are not receptive to male companionship and …
How many chromosomes do flies have?
While drosophila only have a total of 4 chromosomes, they too display sexual dimorphism, with females carrying the double X chromosomes and males carrying XY.
What are the 4 stages of the Drosophila life cycle?
Drosophila is a holometabolous insect, and its life cycle can be divided into four stages: embryo, larva, pupa, and adult (Fig. 1). The Drosophila life cycle is divided into four stages: embryo, larva, pupa, and adult.
How can you tell a male from a female house fly?
Adult: The house fly is 6 to 7 mm long, with the female usually larger than the male. The female can be distinguished from the male by the relatively wide space between the eyes (in males, the eyes almost touch). The head of the adult fly has reddish-eyes and sponging mouthparts.
What is the name of the lab report for fruit fly?
Fruit Fly Genetics lab report. 1. Jessica Olivares 11/22/2014 Bio 3103 Fly lab report Fruit Fly Report Hypothesis In setting up the fruit fly experiment the predicted mutant phenotypes were to be compared in the observed F1 generation and F2 generation.
What is the purpose of the lab study of Drosophila?
Methods For lab one the Drosophila melanogaster species was introduced by indicating the 3 principles of Mendel. The purpose of the lab was to introduce us to the basic structure and the life cycle of fruit flies and the basic techniques of identifying fly mutants and wild type fruit flies.
How to anesthetize flies in Drosophila culture?
To anesthetize flies we obtained empty vial with foam stopper and added 2 drops of fly nap to the inside of the foam stopper. Then we placed the foam stopper in vial. We then transferred the flies in the empty vial, we removed the stopper/ vial and then gently tapped the bottom of the Drosophila culture.
What can we learn from fruit flies?
The primary objective of this lab is to understand concepts related to genetic crosses. In this experiment we used Drosophila melanogaster commonly known as fruit flies to computationally, experimentally, and empirically understand some important genetic principles that were once proposed by Gregor Mendel.