What colors can fruit flies see?
Fruit flies do not see colors in the way that humans do. They have specialize vision that allows them to see shades but not colors directly.
Because fruit flies have small cell counts Because the life cycle of a fruit fly is short enough to actually see a change in a short period of time. With larger animals, it could take many years to see an actual change. With fruit flies, you can see many generations of change in a shorter period of time.
Two fruit flies having the same red eye color is an example of two organisms that are heterozygous or homozygous?
Fruit Flies can sense other types of food too, like grains or vegetables. Also its very important to note that fruit flies do not only breed on fruit. Any sugary substance or even your rubbish bins can be perfect places for fruit flies. More information can be found here: http://www.thebugsquad.com/fruit-flies/how-to-get-rid-of-fruit-flies
Fruit flies are used in research (usually genetic and reproduction research) because they are genetically similar to humans reproduce rapidly. That is they make several generations quickly. So, if the research want to see what will happen several generations after they make an experimental change, they are likely to use fruit flies.
Fruit flies are a powerful asset when studying inheritance because their chromosomes are visible with light microscopes, and they reproduce rather quickly! They can reproduce in a matter of a couple weeks, with around hundreds of offspring! Thus it is easier to see phenotypic patterns as well as genotypic inheritance in fruit flies.
they dont well actually some fruit flies do. it depends on if they are a mutant type of fruit fly or not. there are also flies that have messed up wings, these types of flies are called vestigial. there are also fruit flies that don't even have eyes. all of these types of fruit flies are mutants and are used for testing.