Bai, Guihua, Mulu Ayele, Hailu Tefera, and Henry T. Nguyen. "Genetic Diversity in Tef [Eragrostis Tef (Zucc) Trotter] and Its Relatives as Revealed by Random Amplified Polymorphic DNAs." Euphytica 112.1 (2000): 15-22. Kluwer Academic Publishers, 1 Mar. 2000. Web. 30 Sept. 2012. .…
Rowe G., Beebee T., Burke T. 1999. Microsatellite heterozygosity, fitness and demography in natterjack toads Bufo calamita. Animal Conservation. 2: 85-92.…
In this exercise we will examine the effects of different kinds of potential evolutionary factors on the genetic makeup of simple, model populations.…
The purpose of the research was to formulate a question and develop a hypothesis based on the variations observed between two populations of threespine stickleback, in order to gain a better understanding of natural selection and evolution. Measurements were taken of the number of scutes, ventral length and standard length in Population A. Population B data was provided by instructor. Four null hypotheses were formed on each of the measurements taken, the last hypothesis being no difference between populations. Data was collected from classmates and then compiled together into an excel spreadsheet. Using the spreadsheet, determined confidences intervals and looked for overlapping in the populations. From the confidence interval, it was concluded that there was a significant change between the populations. All of the hypotheses were rejected except for one. Thus proving phenotypic variation and natural selection occurred.…
* If phytoplankton help reduce carbon dioxide on Earth, what would an increase amount of phytoplankton do for carbon dioxide amounts?…
Lake Malawi’s cichlid male population of fish are tested on their ability to build bowers to attract the female population. Altering this extended phenotype, or ability to build bowers resulted in no change of mating, but males that built successful bowers showed to be less aggressive with other males in the population. This is important in maintaining polymorphic populations (Magalhaes, 2014). In my self-created scenario, the focus is on the small male population of cichlid fish. The male cichlid fish ability to build successful bowers is dominant while not building successful bowers is recessive within the population. After a recent hurricane wiped out the cichlid population food source, the male population has been tested on their ability to find other food for the female population. The ability includes better strength and speed. Female cichlid fish find this new ability to more attractive than building successful bowers because of this environmental change. The purpose of this study is to determine natural selection and to see if the male population of cichlid fish will be altered due to the changes in their environment.…
A 240-million-year-old reptile with a skeletal precursor of a shell has been revealed as the grandfather of all turtles. Scientists have given it the moniker Pappochelys, meaning 'grandfather turtle,' in honor of its newly found position at the forefront of the turtles' evolutionary lineage.…
1. There are many ecological and biological factors that affect evolution. In EvolutionLab, two populations of finches are tracked over the course of 300 years on two different islands to see how changing the traits of the birds and their environment affect their long term viability as a sustainable population. Let’s begin by doing a “null experiment” where conditions are identical on the two islands.…
There are a lot of spiritual meanings with animals and nature within these stories. However, how they explain and how they celebrate these meanings is different. Within The Earth on Turtle’s Back they say how the animals can talk and that they are able to dive to bring the earth up.…
Reh, W. and A. Seitz. 1990. The influence of land use on the genetic structure of…
In 1947 it was reported that over 40,000 Kemp’s Ridley sea turtles were nesting along the shores of the Gulf of Mexico and today only 200 Kemp Ridley’s remain on those grounds, making these sea turtles one of the most endangered animals in the United States. When I was younger I remember visiting South Padre Island and seeing holes a long the shore line with little eggs inside them, I also remember this man who drove up and down the beach looking for those eggs in a golf cart. I asked my mom “Why is this man taking away these eggs, won’t the momma be sad?” my mom then told me that these were in fact the eggs of the Kemp’s Ridley. I had no idea how that was relevant, I was six…
While the population is small, genetic drift may rapidly reduce the genetic diversity of the…
“What would you attempt to do if you knew you could not fail” (Unknown)? No person can say or do anything without one taking it too personal and getting offended by it. Everyone is entitled to their own opinion and belief but that does not mean they have the one correct opinion. Everyone has a story or background about their life that few people know about. Everyone has worked hard for something and failed. So why is it now people are constantly in disagreement with others beliefs and think they have some sort of say in it? Social media makes it easy for people to argue without talking in person. Society has brainwashed people into thinking that only one way is right—even though everyone has different pasts and perspectives. People need to…
The influence of nonrandom mating on the distribution of genotypes among a group of animals.…
were breeding grounds for marine mammals, brown pelicans[->4], turtles[->5], and fish[->6], as well as migratory species such as redhead ducks[->7].…