Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Explain the important roles of genetics in our society
Important role of genetics
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Genetics I have always been interested in science, especially of the human body and how it works. Then we had a lab where we went over a little about genetics. I couldn’t help but to be curious about it. I had never given too much thought about it before, besides it having to do with the human body, and I think that is because I never really knew what it was or the different areas involved in genetics. Genetics is about genes and heredity, which is the passing of traits from parent to offspring. The founder of modern genetics was an Austrian monk, Gregor Mendel. He planted peas at the monastery, as they develop quickly, produce abundant offspring, and are easy to grow. It is also easy to control which plant mates with which. (Biology, the Essentials, pg. 173) Mendel was trying to figure out why some traits disappear, only to reappear in a later generation. He noticed that, after cross-breeding some peas, that some traits were hidden by other traits. He called the trait that was masking the other dominant, and the one being masked recessive. (Biology, the Essentials, pg. 174) Today, what Mendel called dominant or recessive traits, biologist reserve for alleles (Biology, the Essentials, pg. 174). An allele is a different form of genes. The unit of heredity on a chromosome is known as a gene. Dominant alleles are symbolized with a capital letter and need only one copy to be present for an individual to have the trait. On the other hand, a recessive allele is symbolized by a lower case letter and two copies need to be present for an individual to have the trait. (Lab 7 hand out paper) My interest in genetics was further peaked when I started watching a show called Medical Mystery Diagnosis. I watched an episode where this couple had... ... middle of paper ... ... an individual can have two of the three alleles. The A and B alleles are dominant, with the A allele code for the A protein on the red blood cells and the B allele code for the B protein on the red blood cells. The O allele is recessive and is the absence of the A or B protein. There is so much to genetics that I have never realized. I could never learn everything about genetics, as there are new things being discovered every day. I can’t wait to see what else I can learn about genetics, and how it affects individuals. Resource Page Cerebrotendinous Xanthomatosis: A Treatable Lipid Storage Disease. Pubmed. 7 September 2009. Web. 25 April 2014. http://www.ncbi.nlm.nih.gov/pubmed/19696711 Hoefnagles, M. (2013). Biology, the Essentials. 1221 Avenue of the Americas, New York: The McGraw-Hill Companies, Inc. Lab 7. Genetics. Hand out. 2014. Murray State College.
Miller, K. R., & Levine, J. S. (2010). Miller & Levine biology. Boston, Mass.: Pearson.
The capital B stated the dominate allele which is brown bodies, and the lower case b states black does which is the recessive allele. The capital E stands for red eyes,
The major topic of this experiment was to examine two different crosses between Drosophila fruit flies and to determine how many flies of each phenotype were produced. Phenotype refers to an individual’s appearance, where as genotype refers to an individual’s genes. The basic law of genetics that was examined in this lab was formulated by a man often times called the “father of genetics,” Gregor Mendel. He determined that individuals have two alternate forms of a gene, referred to as two alleles. An individual can me homozygous dominant (two dominant alleles, AA), homozygous recessive, (two recessive alleles, aa), or heterozygous (one dominant and one recessive allele, Aa). There were tow particular crosses that took place in this experiment. The first cross-performed was Ebony Bodies versus Vestigle Wings, where Long wings are dominant over short wings and normal bodies are dominant over black bodies. The other cross that was performed was White versus Wild where red eyes in fruit flies are dominant over white eyes.
Gregor Mendel was born into a German family, as a young man Mendel worked as a gardener and studied beekeeping. In his later life Mendel gained his fame as the founder of the modern science of genetics. The research that was his claim to fame was his pea plant experiment. Mendel looked at seven different characteristics of the pea plants. For example with seed colors when he bred a yellow pea and green pea together their offspring plant was always yellow. Though, in the next generation of plants, the green peas reemerged at a 1:3 ratio. To explain what he had discovered, Mendel put together the terms “recessive” and “dominant” in reference to specific traits. Such as, in the previous example the green peas were recessive and the yellow peas
[7] Klug, W., Cummings, M., Spencer, C., Palladino M. (2012) Concepts of Genetics: Tenth Edition. Pearson's Education, Inc.
Biologist, Gregor Johann Mendel, discovered how traits passed from one generation to the next. Mendel studied and used pea plants to discover the principles that rule heredity. He found that each parent, father, and mother pass down traits to their offspring, who inherit different combinations of their recessive or dominant alleles-terms introduced by Mendel during the 19th century. Mendel introduced important principles teaching us that recessive traits will only be shown in the phenotype if both alleles are recessive. Mendel’s laws of inheritance include the Law of segregation and the Law of independent assortment.
The presence of a mutated gene may not be noted until a woman with no family
...hich inherited traits, such as those for genetic disease, can be tracked over generations. Throughout out the course of human development, scientists will continue to find new new ways to help the human race through the discovery of the human gene inside of each of us, its uses, as well as complications, that can help the survival of our species.
Miller, K. R., & Levine, J. S. (2010). Miller & Levine biology. Boston, Mass: Pearson
Fulda, K. G., and K. Lykens. "Abstract." National Center for Biotechnology Information. U.S. National Library of Medicine, 25 Aug. 0005. Web. 18 Mar. 2014. .
As a mother, I am shocked and dismayed by the general acceptance of the myth of genetic determinism. One's environment, including people one interacts with, has an undeniable influence on how one develops. Nonetheless, many scientists disregard the impact of environment on one's intelligence. I do not deny that one's biology is a crucial part of one's identity. Inheritance of physical traits is obvious. Children often look "just like" their father or mother, or another relative. One's genes determine eye and hair color, height and body build. I believe, however, that what makes us human is not something that can be found in...
Introduction: Genetics is the study of how genes and heredity combine to create traits in living organisms. Gregor Mendel disproved the theory that heredity comes only from parents. He discovered that there were dominant and recessive genes and his “Law of Dominance” has been used to selectively breed plants and animals for particular attributes. It has also been successfully adopted to identify the risk of passing down genetic diseases. Francis Galton took Mendel’s discoveries further by studying multifactoral inheritance and discovering ‘blending traits’, also known as continuous variation. With these traits, involvement of a wide range of genetic and environmental factors results in the creation of wide-ranging genotypes.
Cain, M. L., Urry, L. A., & Reece, J. B. (2010). Campbell Biology. Benjamin Cummings.
The dominant trait masks or completely covers the recessive, whereas a recessive gene is an allele that is only present in a homozygous genotype. Through Mendel’s experiments he proposed three principles of inheritance, whether you are looking at humans or pea plants, the apparent genetic traits that adhere to these proposed principles were referred to as Mendelian.... ... middle of paper ... ... These four base groups are: Thymine (T), Adenine (A), Cytosine (C) and Guanine (G).
An Essay on the "Rediscovery" of Mendel's Work. Gregor Johann Mendel is widely considered as the founder of modern genetics as a result of his now famous pea plant experiments that were carried out between the years of 1856 and 1863. The experiments ultimately established the numerous rules of heredity that are referred to in genetics to this day (Nirenberg, n.d.). Additionally, he is known for coining the genetic terms "recessive" and "dominant" in an effort to refer to certain traits in the experiments, such as green peas being recessive and yellow ones dominant. His work was published in 1866 establishing the actions of "invisible" factors now known simply as genes in providing for visible traits in predictable ways.