Nobody downloaded yet

The Meaning of Genotype and Phenotype and the Effect of the Environment on the Phenotype of an Organism - Coursework Example

Comments (0) Cite this document
 This essay explains the meaning of genotype and phenotype and the effect of the environment on the phenotype of an organism. Phenotypes are the organism’s observable characteristics. These characteristics can be the organism’s morphology, development, biochemical or physiological properties…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94% of users find it useful
The Meaning of Genotype and Phenotype and the Effect of the Environment on the Phenotype of an Organism
Read TextPreview

Extract of sample
"The Meaning of Genotype and Phenotype and the Effect of the Environment on the Phenotype of an Organism"

Download file to see previous pages   The CFTR gene which for encodes a protein that transports chloride ions across cell membranes has two genes. The dominant gene (A), which is the normal version of the gene. The recessive gene (a), which is the mutated version of the gene. Those with cystic fibrosis receive both the recessive alleles. The genotype of individuals is then (a, a). While the phenotype of the recessive genotype, is the absence of protein that transports chloride ions, and so, cystic fibrosis. The phenotype is not only expressed by the effects of the phenotype alone. The environmental condition also affects the expression of phenotype. The effect of the environment on the phenotype of an organism is best understood through an experiment. Taking two samples of the colors plant, both samples originate from the same plant. The samples are grown in two separate chambers. The environmental condition varied is the amount of light delivered. All other factors are kept constant in both samples. Though both samples have similar genotypes, the growth of both samples varies. The sample that receives higher proportion of light compared to the other grows faster and thrives. While the sample that receives lesser light compared to the other, has stunted growth and is weak. The environmental condition has affected the phenotype irrespective of the genotype being common to both samples. Explain how DNA replicates itself. (200 words) DNA replication is based on the model presented by Watson and Crick. The model suggests semi-conservative replication of DNA strands. This replication is called so, because a half of the strand is conserved while the other half is newly formed. DNA replication occurs in the nucleolus of the nucleolus.DNA replication takes place in the interphase of the cell cycle. In order for DNA replication to take place, the DNA strands must first be separated. The DNA strands are separated by the enzymatic action of an enzyme. The enzyme breaks the hydrogen bonds present between the complementary base pairs. The two DNA strands are separated. The four bases involved in DNA replication are adenine, thymine, cytosine and guanine. Nucleotides when paired with an additional phosphate become activated nucleotides. The activated nucleotides are capable of pairing up with their complementary base pairs with the help of enzyme DNA polymerase. The activated nucleotides form bonds with their complementary base pairs. DNA polymerase links the sugar and innermost phosphate groups of adjacent nucleotides together. The extra phosphate ions are released. This marks the replication of DNA from a single DNA molecule; both new DNA molecules conserve a single strand of the old DNA molecule. Explain the type of mutation that resulted in the sickle cell anaemia. (200 words) Mutation is the change in genetic material of an organism as results of base deletion, base substitution or base addition. The change in genetic material causes a different allele of a gene to be expressed, which in turn causes different phenotypic characteristic. Sickle cell anaemia is an inherited blood disorder that causes a change in haemoglobin characteristic. Haemoglobin is composed of four polypeptide chains. That is two alpha chains and two beta chains. The normal coding for haemoglobin in the beta chains is; Val-His-Leu-Thr-Pro-Glu-Glu-Lys-. These coding codes for normal hemoglobin. However, a base substitution, causes the normal base sequence CTT to be expressed as CAT.  ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Explain the meaning of genotype and phenotype and the effect of the Coursework”, n.d.)
Retrieved from https://studentshare.org/biology/1439690-genetics
(Explain the Meaning of Genotype and Phenotype and the Effect of the Coursework)
“Explain the Meaning of Genotype and Phenotype and the Effect of the Coursework”, n.d. https://studentshare.org/biology/1439690-genetics.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Describe what is meant by genotype and phenotype. Discuss how nature and nurture act together to influence our behaviour
Genotype refers to the genetic makeup of an individual organism. In fact, it is the genetic code that an organism carries in its cells that provides information for a particular trait. The information is written in coded language known as genetic code which is copied during
2 Pages(500 words)Essay
Human Organism
The body can only survive for (duration) without oxygen, (compare to food & water). This shows how vital oxygen is to the body. Oxygen delivery to the various parts of body is the primary responsibility of the cardiovascular and respiratory systems. These two systems work in coordination and rely heavily on each other.
6 Pages(1500 words)Essay
Definition and Meaning of Environment
  It is deemed important to protect the environment because we will be what environment would be. If our environment deteriorates then we would perish as well because we are sustained by nature. It is not only for animals or plants kingdom, but our own sustenance man could think of protecting nature. 
6 Pages(1500 words)Assignment
Can environmental factors acting on organisms lead to inherited changes in phenotype in descendant
Thus, it is important to understand and study the role of environmental factors in altering this genomic structure of an organism to actually see if these environmental factors lead to inherited changes. To study the role of these environmental factors, the factors must be identified, classified and justified.
7 Pages(1750 words)Essay
Organism Physiology
Organism Physiology Name of the Organism The name of the organism, which I am going to discuss in this paper, is ‘Frog’. Frog is an amphibian, which has its presence on the earth for millions of years. In this paper, we will talk about its main organs and will discuss how it has evolved physiologically to suit its external environment.
5 Pages(1250 words)Essay
The mans effect on environment
When we cut trees, pollute water and air with debris and toxins he is changing the ecosystem of the nature. . We are reducing the natural habitat by clearing forests which destroy many species and the balance of nature gets distorted. The plastic, carbon emission and fossil fuel usage is creating a negative impact on environment.
4 Pages(1000 words)Essay
A genetically modified organism
So genetically modified organisms have become a common issue contradicted by multiple opinions and questions, yet most of the consumers of these genetically engineered
7 Pages(1750 words)Research Paper
Characteristics of living organism
Many scientists hypothesize that viruses were the predecessors to cells due to the fact that they share some characteristics. The structure of a virus is very simple. It usually consists of a protein coat which houses the genetic material and then proteins on the outside that allow it to interface with the cell membranes it will infect.
1 Pages(250 words)Essay
Microbiology: Unknown Organism
Through this study, we can observe the amazing reactions. The unknown microorganism was able to ferment sucrose anaerobically hence the production of carbon dioxide and the color change. From the obtained results, the identity of the unknown microorganism was the bacterium Proteus vulgaris.
4 Pages(1000 words)Lab Report
Floating foundation is a type of shallow foundation when the soil is very soft. It does not use footings. The floating foundation has its footing a mat placed deep enough that the weight of the excavated soil is equal or more than the supported
10 Pages(2500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Coursework on topic The Meaning of Genotype and Phenotype and the Effect of the Environment on the Phenotype of an Organism for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us