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What protein does the eye color gene encode?
The eye color gene encodes for a protein called OCA2, which plays a role in determining the color of the eyes.
Can a karyotype determine eye color?
A karyotype is chart that shows all the chormosomes paired up and in order. A karyotype cannot determine eye color but it can determine what colors that specific person carries and can pass down to the next generation. BUT to determine what the next generation eye color will look like, it is not possible yet, but you can do a punnett square and that will show you the possible choice(s).
How do nucleic acids help determine if you have brown eyes or blues eyes?
I will try to answer this as best as I can- though I'm not entirely sure what it is you're asking.Nucleic acids are what make up DNA and RNA. DNA and RNA is found on chromosomes from your parents. The DNA is made up of understood letters- A,T,C and G. The biology community uses these letters to help represent parts of the coding. RNA reads the DNA that codes for eye color and sends a message for the cell to start making protein accordingly. So, if the nucleic acid in which your DNA is made up of codes for blue eyes, you will get blue eyes, same thing for brown.
If the mother has dark brown eyes and her mother has green eyes and her father has brown eyes and the father has grey eyes and his mother has blue eyes and his father has brown what about there baby?
In short, probably brown. However... "Eye color is a complex trait that depends on the state of several interacting genes. The gene that usually decides the issue (blue eyes or brown eyes) is the OCA2 gene on chromosome 15. But it comes in different strengths. A person with a weak form of the OCA2 gene will have blue eyes. Likewise a person with a strong form will have brown eyes. The plot thickens, though, because an individual also has other eye-color genes that each has a say in the final eye-color outcome. For example, if one of these lesser genes is strong, it can make the weak form (blue) of OCA2 work much more effectively - almost like the strong form (brown). Then the eye color may be a light brown or muddy grey. In fact, the resulting color can be any shade of brown, hazel/green, or blue depending on the strengths of the interactions." quoting: http://www.usatoday.com/tech/columnist/aprilholladay/2004-10-14-wonderquest_x.htm This throws the BB bb argument out the window. While, yes, it is more likely that the child will have brown eyes, it is far from guaranteed. It is even possible for two blue eyed people, or one blue and one green, to have brown eyed babies. There is no real way of knowing exactly what will happen until the baby is born.
What protein's R group (from amino acids) is associated with eye color?
The protein associated with eye color is called OCA2 (Oculocutaneous Albinism II). The R group of certain amino acids within the OCA2 protein plays a crucial role in the production and distribution of melanin in the iris, which determines eye color. Variations in the OCA2 gene can lead to different eye colors by influencing the amount and type of melanin produced. Additionally, other genes, such as HERC2, also interact with OCA2 to further affect eye color.
What protein does the eye color gene encode?
The eye color gene encodes for a protein called OCA2, which plays a role in determining the color of the eyes.
Genetically speaking blue eyes are?
determined by a variation in the OCA2 gene that affects the production of melanin in the iris. This mutation results in less melanin being produced, leading to the characteristic blue color of the eyes. An individual must inherit two copies of this gene variant to have blue eyes.
What protein does the eye color gene encode?
The eye color gene encodes for a protein called OCA2 (P gene), which helps determine the amount of melanin produced in the iris. Melanin is responsible for the color of the eyes, with more melanin resulting in darker eye color.
Can a karyotype determine eye color?
A karyotype is chart that shows all the chormosomes paired up and in order. A karyotype cannot determine eye color but it can determine what colors that specific person carries and can pass down to the next generation. BUT to determine what the next generation eye color will look like, it is not possible yet, but you can do a punnett square and that will show you the possible choice(s).
Is there a way in knowing you have the albinism gene?
Yes, you can determine if you carry the albinism gene through genetic testing. If you have a family history of albinism or related conditions, a healthcare provider can recommend specific tests to check for mutations in the genes associated with albinism, such as the TYR, OCA2, or SLC45A2 genes. Additionally, genetic counseling can provide insights into the implications of carrying such genes.
What do you think the possible alleles for eye color in humans?
The possible alleles for eye color in humans are typically variations of the genes that control the production of melanin, such as the OCA2 and HERC2 genes. Common alleles include those for brown, blue, green, and hazel eyes. The combination of these alleles contributes to the wide range of eye colors observed in the human population.
Which chromosomes carry albinism?
Albinism is primarily associated with mutations in genes located on chromosome 11, specifically the TYR gene, which encodes the enzyme tyrosinase important for melanin production. Other forms of albinism can be linked to mutations on different chromosomes, such as chromosome 15 (OCA2 gene) and chromosome 19 (SLC45A2 gene). These genes collectively influence melanin synthesis and distribution in the body, leading to the condition.
Is albinism polygenic?
Albinism is primarily caused by mutations in specific genes responsible for melanin production, such as TYR, OCA2, and TYRP1, indicating that it is not strictly polygenic. While multiple genes can influence the various forms of albinism and their associated traits, the condition itself is typically classified as a monogenic disorder due to its direct link to mutations in single genes. However, the expression of albinism can be affected by environmental and genetic factors, which adds complexity to its inheritance.
What type of variation is eye colour?
Eye color is an example of phenotypic variation, which refers to the observable traits of an organism resulting from the interaction of its genetic makeup (genotype) and environmental factors. This variation is primarily controlled by multiple genes, with the most significant being OCA2 and HERC2, influencing the amount and type of pigments produced in the iris. The range of eye colors, such as brown, blue, green, and hazel, illustrates the complex inheritance patterns and polygenic nature of this trait.
What are the principals of hereditary related to eye colour?
The principles of heredity related to eye color primarily involve the interaction of multiple genes, with the OCA2 and HERC2 genes playing significant roles. Eye color is determined by the amount and type of pigments in the iris, influenced by these genes. Generally, brown eye color is dominant over green and blue, which are recessive traits. Thus, the combination of alleles inherited from both parents dictates the offspring's eye color.
How many different types of albinism is there?
There are several types of albinism, with the most common being Oculocutaneous Albinism (OCA) and Ocular Albinism (OA). OCA is further classified into different subtypes (OCA1, OCA2, OCA3, and OCA4) based on the specific genes involved. Additionally, there are rarer forms such as Hermansky-Pudlak syndrome and Chédiak-Higashi syndrome, which can also include albinism as a feature. Overall, the total number of recognized types and subtypes can vary, but they primarily fall into these categories.
