Phenotype

pattern that are often distinguished via the way phenotype evolve. When a certain phenotype evolves, the unexpressed genetic mechanisms that drive the expression are homologous in closely associated species which is a sign of parallel evolution and quite often differ in distant species which defines convergent evolution. Several studies have shown that with a population a species phenotype could evolve due to changes in numerous…

flow chart of this process in mythical dragons. Method: Step 1) Creative title Step 2) This table displays six different obvious traits that can appear in the dragons that I will be designing. Table 1 - Trait Dominant phenotype Homozygous Dominant genotype Recessive phenotype Homozygous Recessive genotype Horn position Crown (CC) (Cc) Spine…

Evolution is defined as a change in allele frequencies from one generation to another generation with time. To test the evolution theory, Drosophila was chosen as a great experiment organism because of its short life cycle, rapid development, its small size and the large amount of breeding data can be produced. There are two types of allele of Drosophila observed which are ebony allele and wild-type allele. While wild type allele is dominant and easily found in nature, the ebony type is a…

Zebrafish is an excellent candidate as a model organism for studying early developmental process. When comparing the results of ethanol it is evident to see the correlation of higher concentration of ethanol exposure would equal to greater defects in the early development of Zebrafish embryos. For the experiment with just alcohol treated ethanol I believe that after 48 hours I will see embryos not be dead, but lack of movement. This will untimely lead to a shorter life if they reach to maturity…

A genotype is known as the complete genetic makeup of a given organism. Consequently, a genotype is the one responsible for the phenotype of an individual. In eukaryotes, a single genotype is capable of expressing more than one phenotype (observable characteristics). This possibility is because genes can go through lots of differentiation processes like mutation, changes in gene expression and frequency. So, mutations play a significant role in variation. For example, DNA can be affected by the…

and placed onto an index card. The index card was then placed onto the stage of the microscope. After this is done, one fly was observed at a time by moving one of the flies into view by using a brush. By looking at the Drosophila melanogaster the phenotype and sex was observed by looking for particular characteristics. A female fly can be distinguished from a male because she has stripes and males have dark underbellies. The wings were also examined and were determined to be wild type or…

Theories of evolution started before Darwin’s specific one by natural selection. The most prominent and perhaps influential on Darwin was Lamarck’s theory of “evolution by willing”, or that physical changes during an animal’s lifetime would be passed to offspring, in that it laid the foundation for his more developed explanation for evolution (Mayr, 1982). Darwin believed in evolution several before developing his theory of natural selection, he objected to Lamarck’s theory due to the lack of…

spontaneous miscarriage, as monosomy Y is not viable, resulting in no phenotype. b) 47 chromosomes with an extra chromosome 18 and 2 X sex chromosomes. The resulting phenotype is a female with Edwards Syndrome. c) 45 chromosomes with one less chromosome 21 and a X and Y sex chromosome. The sex chromosomes are typical of that of a male, though there would be a spontaneous miscarriage, as monosomy 21 is not viable, resulting in no phenotype. d) 46 chromosomes with one less chromosome 14, a…

Worms. Big worms, small worms, slimy worms. You may not think about worms every day and you might not care for them, but some worms actually play a great role in science. I’m talking about C. elegans. These microscopic worms are being investigated by scientist all the time. They were discovered in the 1970’s by Sydney Brenner and currently an international consortium of laboratories are collaborating on a project to sequence the entire 100,000,000 bases of DNA of the C. elegans genome (CBS). So…

The result of this caused the phenotype of furless bunnies to decrease as well as the genotype of ff to decrease. In data Table 1, the number of furless bunnies decreased from 50 to 22 from Generation 1 to Generation2. Since the furless bunnies could not withstand the cold, they did not…