Abstract:
This study was performed to investigate and predict the cross results of Drosophila Melanogaster flies. Drosophila is commonly known as the “fruit fly”. This specimen is considered to be a “model organism” in biological research, and has been used for the good of science foe over a century (Hester, pg 5-1). Drosophila has been do widely used because of its large reproductive capacity, small size, short generation cycle, and inexpensive housing and feeding requirements (Hester, pg. 5-1). In the experiment we hypothesized that the assumed or predicted value would be equal to or closely relevant to the observed data. To prove our assumptions we used the concepts of Mendelian Genetics, and constructed a dihybrid cross using the “F1” generation, given that Parent generation is unknown, we predicted the “F2” generation by completing a Punnett Square. A Chi-Square Statistical Analysis was constructed to prove the hypothesis and ensure the accuracy of it. The pre-determined statistical value was 7.82; this value was obtained because our degrees of freedom value was three. Our Chi-Square calculated result was 6.49, since 6.49 is essentially less than 7.82; our hypothesis was proven to be accurate and accepted.
Introduction:
Gregor Mendel, “Farther of Genetics,” was an Augustinian monk who discovered the basic laws of how traits are transported or inherited from parent to offspring (Hester, pg. 11-1). Through a series of experiments in which he cross-pollinated pea plants and observed the appearance of the offspring, in these experiments he traced specific phenotypes over the course of generations of crossing experiments ( Hester, pg.11-1). A phenotype is a physical characteristics or trait you can see or measure, whereas a genotype is an individual’s genetic make-up. Mendel worked with easily distinguished traits by tracking the number of offspring’s with specific phenotypes in each generation of a cross, he discovered that different forms or alleles of a...