placed on one side of the double sided bottle while a base with a pH of 11 was placed on the other side. After brief disorientation of the fruit flies’ locations, they were given 5 minutes to travel and choose a side. Both the graph and table display 19 of the fruit flies moving away from the weak acid towards the water with the neutral pH of 7 while 6 fruit flies remained on the side of the weak acid. Using the chi-square method, we determined that our degrees of freedom were 1, thus we had to compare
as the fruit fly, is an extraordinary organism that has been used for genetic experimentation due to its fast life cycle and the fact that it is very inexpensive to acquire and feed. The Drosophila life cycle is short and completed within 10-15 days. It begins with an egg that produces larvae, becomes pupa and eventually develops into an adult. After roughly ten hours after emerging, adult flies are ready for mating. 24 hours after mating, the females lay eggs. To begin the mating experiment, virgin
Introduction The purpose of this experiment was to analytically determine linkage of eye color mutations present in Drosophila melanogaster (D. melanogaster) based upon phenotypes expressed in a controlled F2 generation, which resulted from a known parental cross. The fruit fly acts as an important model organism in the study of genetics, including studies surrounding human disease. D. melanogaster has the ability to undergo a vast array of different mutations, which can then be studied, induced
used in scientific research. The purpose is to check how animals’ systems react to some of the chemicals used in producing drugs and cosmetics. Opponents of animal testing argue that it is completely immoral and inhumane to conduct any kinds of experiments on animals. They also claim that there are plenty of alternative methods of testing new chemical products without harming animals. However, proponents of animal testing claim that such kind of research helps them to discover new treatments for the
one trait or in which only one trait is being considered” (book). A monohybrid is an offspring, F1 generation, of the “two homozygous parents that differ from one another by the alleles present at only one gene locus” (2). Mendel also performed experiments with plants that differed in two traits called dihybrid cross. A dihybrid cross is between homozygous parents differing in two respects. A dihybrid is an individual that is heterozygous for two pairs of alleles (2). Three
Introduction In this experiment the Mendelian laws of inheritance were used to investigate the inheritance traits in Drosophila Melanogaster. Gregor Johann Mendel, is a famous and important figure in the study of genetics, he is remembered as the father of genetics. Mendel is most known for a study in which he grew, crossed, recorded, and analyzed pea plants. His findings lead him to his laws of inheritance. (Brooker, 2012). The purpose of the experiment was to investigate the inheritance of traits
Lord of the flies, a novel by William Golding is filled with innuendos and metaphors prevalent to modern day society and the world around us. The story shows that good people in bad situations change the way people will think and react slowly turning them into savages and stripping their remorse and sense of humanity. Most of the people in our country would be considered ¨littluns¨ and don't think to question authority and ask real questions because we’re not open to accepting the real answers
sources then they would either become extinct or depend on other animals to feed them. Humans would also be changing their diet if we lived without bees because most of our fruits and vegetables come from the work of the honeybee. After pollination and fertilization in a flower, cells form into a seed and the seed becomes a fruit (Henein & Langworthy 2009). Without this process, these nourishing foods would not be on our plates. I am sorry to tell you this Grandpa Bill, but although we can rely on
First, experiments by Cano (as cited by Buysse et al., 2011) have shown that insomnia developed in stressed mice after the introduction of a stressor to them. This could apply even to humans, resulting in insomnia. Second, electroencephalogram studies of rats by
jumping spider. These spiders usually eat orchard moths. The more outgoing a spider is the more territory they will explore to find prey. The less outgoing a spider is the less it will capture. Royaute from North Dakota University conducted this experiment. He studies the way animals act in natural