Introduction:
Genes are the basic physical and functional units of heredity that are transferred from parents to offspring (What Is a Gene, 2014). Every person inherits, or receives, one copy of each gene from their parents, and most genes are the same in all people (What Is a Gene, 2014).
Since genes, on the molecular level, are a sequence of DNA nucleotide bases, any change in this sequence results in a genetic mutation (Mader & Windelspecht, 2012). Less than 1% of human genes have small differences in their sequence of DNA bases between individuals. These forms of genes are known as alleles (What Is a Gene, 2014). These small genetic differences can contribute to a person's unique physical features and characteristics, as well as some biological …show more content…
Human perception of color relies on our eyes and brains working together to perceive the different properties of light reflected off of the objects in our environment (Facts About Color Blindness, 2015). Visible light is a small range within the electromagnetic spectrum that the human eye can detect. The human eye perceives different wavelengths of light as different colors. The wavelengths of the visible spectrum range from 400nm to 70nm. Longer wavelengths are perceived as red light, medium wavelengths correspond to green, and shorter wavelengths correspond to blue light (Facts About Color Blindness, …show more content…
Individuals affected by this vision deficiency often have other vision problems such as increased sensitivity to light, involuntary band-and-forth eye movements, and nearsightedness. Blue cone monochromacy affects about 1 in 100,000 people world-wide, and also affects males more often than females (What Is a Gene, 2014).
The most common form of CVD is a red-green color vision defect (What Is a Gene, 2014). Individuals affected by this deficiency have trouble distinguishing between shades of red, yellow, and green. This type of CVD affects males more often than females. In addition, studies have shown that in populations with Northern European ancestry, about 1 in 12 males are affected and 1 in 200 females are affected. Red-green CVD has a lower occurrence in almost all other populations studied (What Is a Gene, 2014). Research has indicated that Caucasian males are most likely to be affected by red-green color blindness.
Genes are the basic physical and functional units of heredity that are transferred from parents to offspring (What Is a Gene, 2014). Every person inherits, or receives, one copy of each gene from their parents, and most genes are the same in all people (What Is a Gene, 2014).
Since genes, on the molecular level, are a sequence of DNA nucleotide bases, any change in this sequence results in a genetic mutation (Mader & Windelspecht, 2012). Less than 1% of human genes have small differences in their sequence of DNA bases between individuals. These forms of genes are known as alleles (What Is a Gene, 2014). These small genetic differences can contribute to a person's unique physical features and characteristics, as well as some biological …show more content…
Human perception of color relies on our eyes and brains working together to perceive the different properties of light reflected off of the objects in our environment (Facts About Color Blindness, 2015). Visible light is a small range within the electromagnetic spectrum that the human eye can detect. The human eye perceives different wavelengths of light as different colors. The wavelengths of the visible spectrum range from 400nm to 70nm. Longer wavelengths are perceived as red light, medium wavelengths correspond to green, and shorter wavelengths correspond to blue light (Facts About Color Blindness, …show more content…
Individuals affected by this vision deficiency often have other vision problems such as increased sensitivity to light, involuntary band-and-forth eye movements, and nearsightedness. Blue cone monochromacy affects about 1 in 100,000 people world-wide, and also affects males more often than females (What Is a Gene, 2014).
The most common form of CVD is a red-green color vision defect (What Is a Gene, 2014). Individuals affected by this deficiency have trouble distinguishing between shades of red, yellow, and green. This type of CVD affects males more often than females. In addition, studies have shown that in populations with Northern European ancestry, about 1 in 12 males are affected and 1 in 200 females are affected. Red-green CVD has a lower occurrence in almost all other populations studied (What Is a Gene, 2014). Research has indicated that Caucasian males are most likely to be affected by red-green color blindness.