Genetics And How Heredity Plays Affects Us As Humans

The basis of genetics were established by Gregor Mendel, an Augustinian monk in the mid to late 1800’s. Through the observations from cross-pollinating pea plants, Mendel was able to discover the basic laws of inheritance. Years later genetics would be studied on a multitude of organisms, some more than others. Drosophila melanogaster or the common fruit fly has been studied in depth for its great advantages, such as size, reproduction rate, ease of care and inexpensive room and board.

We started out with three populations; B, D, and G. In order for us to properly create controlled genetic crosses, we had to ensure that all the female flies were “virgins”.

The wild-type D. melanogaster wing has rounded, balloon-like wing margin with evenly distributed bristle hairs surrounding.

Genes can either be sex-linked or autosomal. If a gene appears mostly in one sex chances are the gene is sex-linked and if it appears frequently in both sexes it is most likely autosomal. Using Drosophila melanogaster, also known as the fruit fly, we will determine whether the gene is sex-linked or autosomal. Drosophila melanogasters have a relatively short life span and are an excellent organism for genetic studies because it has simple food requirements, occupies little space, is hardy, completes its life cycle in about 12 days at room temperature, produces large numbers of offspring, can be immobilized readily for examination and

The Drosophila melanogaster is a fruit fly with a very short life cycle. They can be winged or wingless, and have red eyes or white eyes. The different options are called alleles. Alleles are the variants of a specific gene, and one is received from each parent on each chromosome. (“What Are Dominant and Recessive?”). It was chosen to use winged females and wingless males to predict the offspring in this experiment. The winged allele is dominant, meaning it only needs one allele to physically appear. The wingless allele is recessive, which gets covered up by the dominant allele (“Fruit Fly Genetics”). Each trait has two alleles in the flies’

Studies on the genetics of other animals, such as fruit flies, can reveal more about the genes of other animals, including humans. After crossing the flies, a hypothesis can be made based on the data obtained on whether the traits are autosomal, sex-linked, recessive, or dominant. Methods Prior to this experiment, the vials used to hold the Drosophila melanogaster were made.

Drosophila melanogastor were one of the first organisms chosen to be analyzed and study, since they are the work force of the genetics research. Back in the early 1900s, researchers such as T.H. Morgan, H.J. Muller, E. Weischaus, and C. Nisslein-Volhard were able to use the organisms to determine how genes are inherited, how radiation causes DNA damage, and there are genes that controls human development. In 2000, scientists found over a hundred genes that can be used to study human diseases because they found a way to sequence the drosophila genome. This organism has been used for scientific research for decades and is continued to be used because they help scientists and researchers understand how human processes and their disorders. With the experiment, crossing the flies is to demonstrate the inheritance pattern of a single and double trait.

The flies are very useful in experiments because they have a short lifespan. The flies are often used in genetics because they only have four chromosomes, which make it easier to see

Abstract The objective of this lab to, develop an understanding of the inheritance patterns observed in a fruit fly. For this experiment we used Drosophila melanogaster as a model organism due to its short life cycle, small size, and its virtual inexpensiveness. Drosophila melanogaster commonly known as the fruit fly used in this experiment provided experimental data that was in agreement with the laws of segregation and independent assortment proposed by Gregor Mendel.

Drosophila melanogaster may just be small little fruit flies that feed on rotten fruit but this little creature happens to be one of the most valuable organisms in understanding genetic research. The D. melanogaster are commonly used in studying genetic traits because they are useful, small and have an extremely short life cycle (6). Our experiment shows precisely how D. melanogaster are used to identify mechanisms of transmission genetics in eukaryotes. Simple parental crosses were done to obtain both F1 and F2 generations. This was done so we could determine if the apterous (a wingless phenotype) and the sepia (dark brown) eye color of the fruit flies follows Mendelian inheritance or not. Our F1 generation displayed all offspring with red-eyes and wings; which follows Mendel’s principles. Our hypothesis is that our experiment will follow the classic inheritance patterns because the sepia traits and the wing traits display a dominant/recessive pattern in the D. melanogaster (4). If our hypothesis is correct, then we predict to see an entire F1 generation of red eyed fruit flies with wings and an F2 generation of 9 normal

The world of Genetics is one that is both fascinating and interesting. When tackling how genetics plays a role in behavior, one must look within the scope of what genetics is before dealing with how it plays a significant role in one’s behavior. Simply put, genetics is the study of genes. It is a biological component within the entire study of biology itself. Scientists who study genetics and perform research do so with the intent to learn more about how genetics affects the overall attitudes, behaviors and dispositions of individuals. It could be said that genetics is somewhat of a psychological-biological science as researchers look at the underlying patterns within the genes that cause

This research paper is about analysis of variation at transcription factor binding sites in Drosophila and humans. This analysis is done in order to investigate the transcription factor binding sites (TFBS) variability with the comparison of ready published data of transcription factor binding maps for Drosophila isogenic lines and human individuals. In this paper it is very important to understand the concept of population genetics. Population genetics explains the study and research of distributions and modifications of allele frequency in a population. It further states that there are actually four evolutionary processes such as; selection, genetic drift, mutation and gene flow.

This paper reviews two interesting articles related to human genetics. Dr. Nestor Morales, Assistant Professor of Psychology at New York City College of Technology at City University of New York, presents the idea that since human cloning is inevitable, an understanding of the psychological aspects of this development need to be addressed. The second article to review is found in the European Child & Adolescent Psychiatry; it relates to the genetic link from a parent that has ADHD or ASD (autism spectrum disorder), to the high percentage that the child from that parent may also be diagnosed with one of those disorders.

Human growth and development is an incredibly complex process, influenced by both genetic and environmental factors. At certain times and for certain developments, genetic influences dominate, whereas at other times, environmental influences are more powerful which emphasizes the fact that genetic and environmental forces are always working together (Sigelman and Rider, 2009).

Human growth is a complex and captivating concept that cannot be determined by few factors. When it comes to a child’s development, I believe that one’s parents, heredity, and peers all influence one’s growth. First of all, since a child is almost consistently surrounded by family (especially at a young age), his or her parents can shape one’s foundations. These include belief systems, traditions, and perspectives about society. Children are inclined to agree with a parent’s opinion when they trust them, but also even if they fear that disagreeing with them will bring consequences. Secondly, as a child becomes introduced to his or her peers, he or she may also desire to fit in and belong to a wider social circle. Children spend a lot of time together at school and kids especially want acceptance, so they often attempt to please or imitate their friends. Finally, heredity plays a role when it comes to influencing one’s development. In my opinion, its primary effect is the child’s physical appearance, the chances of health issues or disorders, some aspects of personality, and the person’s ethnicity. Genes determine all of these and set the scene for what kind of treatment a child may receive from the surface.