Gregory Mendel is the father of genetics, he was able to recognize to principles of inheritance: the law of segregation and the law of independent assortment. Fruit fly is a small type of fly; it is in most cases found near rotten or unripe fruits, this fly as been used extensively in genetics. Genetic recombination and sex linkage led to the use of drosophila in genetics also its relatively small size, sort generation time and easiness in culturing it.
Suppose you have a flashlight in your hand. Describe the transformations of energy that take place to allow that flashlight to give off light. Be sure to include where waste energy is given off.
9. Fourth week: Begin removing the F2 flies. Record their sex and the presence or absence of mutation(s). The more F2 flies collected, the more reliable the data will be. You may have to collect flies over a three-or four day period (or more). Try to collect at least 200 flies (probably quite a bit lofty).
The study of population genetics is simply how the genes or alleles within a population may vary or change. The purpose of population genetics is being able to predict the genes that are expressed in future generations and understanding why that is. An allele is an alternate form of a gene, so blonde hair and black hair are both alleles but hair color is a gene. In this particular experiment the alleles being focused on are the body colors of the Drosophila melanogaster, which is the common fruit fly. The two different body color alleles are the wild type, tan body color, and the ebony type, black body color.
Fruit Fly experiment was conducted by using different techniques. One of the main things was to examine the fruit flies and identify the difference between females and males, identify their mutation if they were wild type, white eye, vestigial or white and vestigial combined together. These Fruit flies were kept in the incubator at 25°C for about 6 days. The main goal for this experiment was to observe the principles of Mendelian genetics.
The firefly will move randomly if there are no fireflies brighter than that firefly. Objective function determines the brightness of firefly. The pseudo code for the FA is as follows: Algorithm: Firefly Algorithm Inputs: population size ‘n’, maximum generation ‘MG’ Specify initial values of alpha, beta and gamma Compute initial fitness of ‘n’ fireflies Identify
Chemiluminescence is the release of light without heat due to a chemical reaction. The release of light is from bonds that are broken, formed, or restructured2. A similar process, known as fluorescence, also produces an illumination. This chemical process on the other hand, gets its energy for light from the absorbance and release of light at different frequencies.
The purpose of our experiment was to see the progeny from the cross between the wild-type females and the mutant males and the cross between mutant females and wild-type males. We started by preparing the vials for the test cross. We had first prepare that inside the vials that will provide nutrients to the fruit flies so that they can carry out their life cycle. To do this, we obtained a clean vial and a foam plug. Next, a small scoop of powdered food was added to the vial. Then a small scoop of tap water was added. Once the mixed, approximately 4 grains of yeast were added. The vial was then tapped on the table to level out the mixture. The inside wall was then wiped with a clean Kim-wipe to keep the flies from sticking to the wall. This
1. Loosen the caps on the tubes of the cultures. Follow any instructions that are sent with the cultures to get them started.
Chemiluminescent reactions also generate electromagnetic radiation through light by releasing energy from the chemical reaction. This reaction involves the fragmentation of the O-O bond. Peroxides are common in chemiluminescent reactions because the bond between the O-O is relatively weak and can be easily cleaved, releasing a large amount of energy.
Glow sticks and LED light sticks are commonly seen in popular society at concerts and festivals. However, glow sticks have several other uses and were originally invented for use in the military. In the 1960s, scientists were interested in the light fireflies produced in nature. They discovered that this light could be produced without energy or heat using a chemical compound called luciferin. A Brooklyn-born chemistry specialist named Edwin A. Chandross accidentally identified the chemical mixes needed to create the glow of a glow stick when experimenting with luminol. The first light products using this mixture were created and patented by Michael M. Rauhut of American Cyanamid. The first official glow-stick-type mechanism was granted to
For a long time the deep ocean was considered a unable to sustain life. Bone-crushing pressure, freezing temperatures, and devoid of sunlight are all elements that should prevent any form of life from existing, yet it does. In the video, we saw that the deep ocean was teeming with life, completely foreign looking, but life nonetheless. Bioluminescence plays a key factor in the deep and is often the only light that appears in this dark place. Many predators use their bioluminescence in the form of lures to catch their prey. The angler fish does just this and can often lure in big prey. Since meals may be few and far between, the angler has a highly expendable stomach to ensure it reaps the entire reward of its hunt. Bioluminescence
Scientists have found many ways of how fireflies are medically and scientifically useful in the real world. The tail of the insect has chemicals the light the presence of ATP. ATP can be found in diseased animal cells and with the help of the two chemicals ATP can be taken out of the cells.
90% Marine life glow deep under water where there is no source of light, this sparking like fireworks in water the organisms that include almost all variety of Jellyfish. Anglerfish has a bioluminescent antenna that attracts prey; squid sprays a bioluminescent ink to defend itself from predators. (Combs, 2009) Fireflies are a common example of Bioluminescence, they glow in order to attract mate. Glowworms’ larvae are hung from the cave ceilings complimenting their circular form and blue luminescence. (MOLINE & OLIVER, 2013)
This information was taken off a physics website and didn’t help me during my experiment. I had already found out a lot about photosynthesis and how light affect it which was the point of this investigation. What this information did do was reassure me that photosynthesis is an efficient process. It also showed me how conditions can change the rate of photosynthesis and from this I knew it was likely my experiment would be a success.