Determining the affects of natural selection on gall fly (Eurosta) larvae from different predators Ariel O’Neil Biology 1020H Abstract This lab was done with the objective of determining if directional selection causes early larvae death in the gall fly. By first examining the parasitoid wasp and birds predatory actions we can hypothesize and predict the smaller galls will be most likely to survive directional selection.…
Depending on the conclusion of the experiment, selection pressure for or against phenotype may improve or prevent reproductive success (fitness) and survival. The hypothesis being tested is that brighter phenotypes will experience negative…
The fruit flies does deal with dominant vs. recessive for the wing traits. Complete dominance occurs when the dominant allele complete cover (hide) the recessive allele. This occurs to the wing traits in the fruit flies. Normal wings are dominant over vestigial wing and base on the data, the female that carries the vestigial wing did not create any F1 generation of vestigial traits. This occurs because the male has normal wing so when the two parent meet; the dominant normal wing in the male completely cover up the recessive vestigial wing in the female traits.…
Survival of the Sickest Analysis In Charles Darwin’s theory of natural selection, Darwin suggests that those organisms that possess certain characteristics that give them an advantage over other organisms, are to be more likely to survive and pass on their traits to other organisms of their species through reproduction. Thus, through evolution, all life on earth is bound to only get stronger and improve its chances of survival - or be completely eradicated, as the organisms that do not possess advantageous traits do not survive to reproduce and the traits that make a species weaker will gradually be eliminated. However, though evolution eliminates unfavorable traits it has allowed countless…
1. High Productive Capacity- Each species produce more offspring than will survive to maturity. 2. Heritable Variation-…
Altruism is a wonder characterized by French scholar Auguste Comte as conduct by a person that expands the wellness of another individual while diminishing the wellness of the performing artist. The coinage of this term suggested a troublesome conversation starter to the field of transformative science, as it negated with Charles Darwin's meaning of the system of natural selection. In The Origin of Species, Darwin clarifies the instrument of regular determination by expressing that "individuals having any advantage, however slight, over others, would have the best chance of surviving and procreating their kind" and "On the other hand, we may feel sure that any variation in the least degree injurious would be rigidly destroyed" (83). The presence…
Genetic variation is necessary for evolutionary change, and refers to the differences in the composition of genes in a gene pool; examining the possible genetic variation found within populations of Blanding’s Turtles may provide meaningful insights into biology, such as being able to understand both the importance and patterns of evolution and population genetics. Without genetic variation, a loss of heterozygosity would occur, which may result in the sustainability of undesirable genes, an absence of both gradual and adaptive evolution in response to a changing environment, and eventually, extinction. Blanding’s Turtles are found throughout the Great Lakes and along the East Coast of North America.…
Stacy Gomez Biology 2 Mrs. Netri 6 June 2015 Gattaca: The Message of the Future After watching the movie Gattaca, it brought to reasoning that there were different ways of selection in every living organism. Gattaca is about a guy, Vincent Freeman, who is born and they detect that disorders will occur in his 30 years of living. His younger brother, Anton Freeman, is given the “good” genes by a process called artificial selection. Artificial selection is a process done by man, where they close the mating process and the traits that go along with it are chosen.…
Inherited traits put growth and development into action in not only individual organisms but also the evolutions of species over time. Humans wouldn’t have evolved to who we are now if it wasn’t for inherited traits. In fact all species have adapted and evolved to be unique and distinct. For example a hummingbird that has adapted to have longer bills to be able to reach inside a flower to get nectar. Hummingbirds could die out from having short bills so they evolved throughout generations.…
Founder effect occurs if a small group moves from home to new settlements, this new family will have dissimilar allele frequencies from the original population it may be by chance either lack come alleles or have high frequency of others while population bottlenecks occurs when a large decrease in the size of an original population can eliminate a large amount of genes. 23. How does mutation increase genetic variation in a way that crossing over and independent assortment do not? This because during mutation selection removes deleterious alleles however, dangerous recessive alleles are preserved in heterozygotes and are reintroduced by mutations 24. How does mutation alter allele frequencies?…
Microevolution is change in allele frequencies in a species or small group, over a relatively short period of time. Natural selection and genetic drift are agents of microevolution. Natural selection is a process of editing in nature whereby individuals with certain inherited genotypic characteristics have higher chances of survival and of successful reproduction than others, because of these traits. The organisms that are best suited for their environment live and pass their beneficial traits in rising numbers on to consecutive age groups resulting in the population evolving over time. It is a descent with alteration from a common ancestor that has led to today’s rich diversity.…
The English Peppered Moth and Natural Selection Lab By: Justin Pascual Partners: Nathan Magbitang, Rudy Keyes-Krysakowski, and Glenn Tipold Teacher: Ms. Coopman Date Performed: November 16, 2015 The English Peppered Moth and Natural Selection Lab Purpose The purpose of this lab is to determine how variation in a population can favour survival of a certain trait over multiple generations. Hypothesis It is believed that if there are more speckled moths remaining in the tray at the end of the experiment, it will represent the fact that the conditions of the surrounding environment have favoured their colour.…
Writing Assignment #1 Lasiognathus dinema There are a couple misconceptions you might have about evolution and natural selection. The strongest and most important organisms do not survive over the generations. Although evolution occurs due to fitness in an individual or individuals of a species, an organism cannot survive over generations. Fitness is achieved through variations in populations of species through genetic differentiation (Scottville “n.d.”). Since the life cycle of all living organisms is to be born, survive, mate, and die, it is impossible for an organism to live through several generations.…
The phenotype is often not influenced in one way or another; there is a range oh phenotypes that result from an environmental factor influencing the genotype. For example intelligence, a child could be equipped with the genetics to be smart (high IQ) but without an enriched environment as a child, learning and intellectual growth can be slowed down or stunted. For instance, I was in an orphanage until I was two-years-and-four-months. I was not in an enriched environment, which greatly slowed down my learning language, reading and even hand-eye-coordination skills. When I was adopted a program was implemented to make up for this loss, however, there were permanent deficits as a…
Did Darwinism prove that some races were inferior to others? Darwinism had a huge impact on America in the 20th century. It gave people a whole new world view, a way of looking at the world and how everything began. Charles Darwin, originally born a Christian, rejected the religion because as a boy he felt God let him down and that He must not actually be real. This lead Charles to come up with his own theory of how humans came into the world.…