OCA2 Gene - Hair Color - Essay Example

Comments (0) Cite this document
Summary
Name Instructor Task Date OCA2 Gene and Hair Color Introduction Melanocytes, which are melanin-secreting cells, are often in charge of the color of the skin, and affect the color of the eyes, skin and hair. Hair has a protein Keratin and is arranged in three different layers…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.3% of users find it useful
OCA2 Gene - Hair Color
Read TextPreview

Extract of sample "OCA2 Gene - Hair Color"

Download file to see previous pages I will analyze the Oculocutaneous Albinism gene type 2 (OCA2) and its effect on color change of the hair and how different individuals of diverse ethnic backgrounds are affected. Oculocutaneous Albinism Type II and Hair Color Changes Identification of OCA2 may have the following implications on a child or individual: A change in the color of the hair or an elevated color levels in hair, the iris is normally translucent, dancing eyes that may lead to impaired vision, or a general eye complication that makes it difficult to have a normal vision. OCA is normally diagnosed in a child or an adult with poor vision or reduced visual contact. In addition, these individuals often have a change in skin complexion and a different hair color that is considered not normal. In dark skinned affected individuals, it is easier to identify OCA2 because the skin may lighten and the color of the hair changed. In light-skinned individuals however, it may be more difficult; hence, there is need to consider the other symptoms like a change in iris color. Albinism does not discriminate and affects all races. Our case type 2 is mostly evident in individuals in African and African American population. It however affects both male and female sexes with it being more evident in male persons female because albinism is sex linked. Albinism is often more evident in individuals during childhood stage where the characteristics mostly witnessed are a change in skin pigments and a change in hair color (Peracha). Individuals having Oculocutaneous albinism because of mutation in the OCA2 gene often depict traits of blond, light brown or light yellow hair. There is often reduced coloring in the skin, hair and the eyes sometimes impaired vision. The key cause of these traits is always a reduction in the production of melanin that is responsible for the normalcy in the color of these components. Several mutations exist in individuals with OCA2, some of which I have listed above. The commonly found mutation is the complete absence of the gene responsible for normal coloring. This is usually evident among occupants in sub- Saharan Africa where extreme cases of albinism are witnessed, among African Americans and in Native Americans. These genes are inherited from our parents and mostly are not noticeable in the carrier parents until passed on to the children where they are now more evident. In OCA2, individuals from European Ethnic origin often experience a light yellow color change often evident during birth. In some cases, the hair may have white pigments and may darken with time. This group of Oculocutaneous albinism normally shows much lighter symptoms as compared to the first group. Caucasians with OCA2 have red hair in place of blonde while in most Africans and African Americans, the hair color is light brown complemented by light skin. In another instance, individuals from Asian and northern European origins are found to have a normal skin and hair complexion and only stand out when they are compared to their family members. Their skin complexion is normally lighter when compared to that of individual members of their family who are unaffected. It is evident that the skin color in OCA2 is not as affected as the one in Oculocutaneous albino group one that has a very sharp distinction in pigment alteration. This is evidence that the melanocytes in this ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“OCA2 Gene - Hair Color Essay Example | Topics and Well Written Essays - 750 words”, n.d.)
OCA2 Gene - Hair Color Essay Example | Topics and Well Written Essays - 750 words. Retrieved from https://studentshare.org/biology/1438525-oca2-gene-hair-color
(OCA2 Gene - Hair Color Essay Example | Topics and Well Written Essays - 750 Words)
OCA2 Gene - Hair Color Essay Example | Topics and Well Written Essays - 750 Words. https://studentshare.org/biology/1438525-oca2-gene-hair-color.
“OCA2 Gene - Hair Color Essay Example | Topics and Well Written Essays - 750 Words”, n.d. https://studentshare.org/biology/1438525-oca2-gene-hair-color.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF OCA2 Gene - Hair Color

Gene therapy

...?Gene Therapy, Safety Concerns and Improving Safety Methods Gene therapy is a method of treating various acquired and genetic diseases with genes. This is an experimental technique and is done by inserting genetic material into the patient’s cells. In this form of treatment, the diseases are either treated or prevented by replacing abnormal gene, or by introducing the absent gene or by supplementing the defective gene (Genetics Home Reference, 2008). The genes thus introduced exert their benefits by either compensating for the abnormal genes or by producing beneficial protein or by supplementing the...
5 Pages(1250 words)Essay

Human gene

...?Human Gene Although mutations are crucial for evolutionary processes offering diversity in the populations, they are often detrimental to individualhealth (Clancy). Mutations in a gene can lead to non-functional enzymes, disruption of protein structure or altered protein conformation affecting the normal protein functioning. Such abnormalities often result in various genetic diseases. For instance, mutations in the gene, GALT, can lead to inherited autosomal recessive disorder called Classic Galactosemia or Galactose-1-phosphate uridyl transferase deficiency. A person with classic galactosemia is unable to metabolize galactose sugar into glucose in the liver and is susceptible to various...
3 Pages(750 words)Essay

Color

...? Color Color Color is a visual perception that corresponds in human to the categories referred to as blue, red, green, yellow and others. Color derives from the distribution of wavelength versus light power (spectrum of light) that interacts in the eye with light receptors’ spectral sensitivities (Farndon, 2003). Physical specifications and categories of color are associated with materials, objects, and light sources based on physical properties of color such as reflection of light, light absorption, or emission spectra. This paper seeks to discuss our perception of color. Color may be quantified and...
5 Pages(1250 words)Research Paper

Gene Patenting

...Gene Patenting A gene patent is a patent on a particular gene sequence, on its chemical and structural composition, on the processes of obtaining it and aggregation of such claims. Gene patents are subset of a wider category of biological patents. Patents are granted only on specific isolated genes whose function is known. There are many benefits to gene patenting but there are also some controversies to its use. The United States Patent and Trademark Office (USPTO) regulates the patenting of genes and gene product (Barton, pg121-125). It has issued patents for a few gene fragments....
5 Pages(1250 words)Essay

Gene Determination

...Gene Determination Q1. Birth defect of the sex organs (Genital Birth Defects) that result in a problem with assigning a definite sex to a newborn child is known as Ambiguous Genitalia or Atypical Genitalia (Committee on Genetics, 2000, Birth Defects, 2005). This condition is said to occur in about one in every 3,000 live births and is characterized by the presence of either a combination of male and female external genitalia or an external genitalia that cannot be clearly assigned to a gender (Birth Defects, 2005). To properly understand the occurrence and causes of this condition, a clear understanding of the normal genetic and hormonal influences that interplay in genital formation and development is important...
7 Pages(1750 words)Essay

Gene technology

...Topic Gene Cloning Practical Extraction of genomic DNA from the given organism. Observations and Inference: a) The extracted DNA is visible on agarose gel slightly anodic to the application point, i.e. we were able to extract DNA from the organism. b) The DNA band appears near the origin and above the highest fragment in the DNA ladder, hence, it appears to be very large DNA. Actual size cannot be determined from this experiment. c) We expect the DNA to be very large since we have extracted the genomic DNA from the bacterium. The size of genomic DNA from E.Coli is about 4,500 kb which is beyond the limit of the gel or the DNA ladder used. Appearance of E.Coli DNA is shown in Figure 1b. Fig 1. a) Agarose gel...
3 Pages(750 words)Lab Report

Gene

...Cloning the gene A). Cloning the mouse gene for G6Pase. This amino acid sequence will be checked in the mouse nucleotide collection using the TBLASTN algorithm for any match. This automatically determines the possible nucleotide sequences that could have coded for that particular amino acid sequence. After identifying an existing nucleotide sequence that can possibly produce such oligopeptide, the sequences upstream and downstream of it will be used to identify sequences compatible with restriction enzyme digestion. Upon treatment of the purified mouse DNA with restriction enzymes, the isolated DNA sequences will be joined with plasmids cut by the same restriction enzymes through their compatible and...
8 Pages(2000 words)Essay

Dominican Hair

...Dominican Hair This is a pioneering ethnographic and chronological examination of Dominican distinctiveness in the Republic of Dominican and the US. The overall importance of this book is its contribution to the understanding of the manner in which national and racial identities were generated and interpreted. It shows that these incidences and processes not only take place in personal experiences, but also in a number of public and communal sites. Candelario explores and explains how the Dominican Republic draws its historic ancestry and heredity to the amalgamation of different cultural groups. These groups include the; Taínos (who are the Indigenous group), the Spanish (who were the colonizers), and the Africans...
2 Pages(500 words)Essay

Beethovens Hair

...Beethoven’s Hair Ludwig van Beethoven, regarded as one of the most talented and famous music composers of all time, composed most of his recognizablesymphonies, when he suffered from hearing loss. With hearing being a key necessity for even listening to the music, and Beethoven being a musician, one wonders how he came come up with such beautiful compositions, without being able to hear what he has composed. Various theories are circulating regarding how Beethoven changed his music composition style after deafness set it, and how that positively shaped him to come up with such exceptional music. Along with these theories of Beethoven’s music composition style, number of theories are being put forward and even tested by...
4 Pages(1000 words)Research Paper

Color

...Color Theory Understanding color theory and color models is very essential when discussing color with the art and editorial staff of a magazine. A good understanding enables a person explain in the best way possible to the staff what you need from them. The best color selection increases the chances of the magazine reaching its goals. Normally, color in design is very subjective. This means that, what evokes one reaction in one person may evoke a very different reaction in someone else. Experts relate this phenomenon to personal preference, or even due to cultural background. A good understanding of color theory is a...
1 Pages(250 words)Assignment
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 Essay on topic OCA2 Gene - Hair Color for FREE!

Contact Us