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Color blindness, also known as Dalton's disease, is a congenital color vision disorder. There are several types of color vision disorders, the most common being red-green color blindness. According to the theory of the three primary colors, any color in the visible spectrum can be composed of red, green, and blue.
If you can recognize all three primary colors, you are a normal person, and if you can't recognize all three primary colors, you are called total color blindness. Those who have a reduced ability to recognize any color are said to have weak colors, mainly red and green. If there is a primary color that cannot be recognized, it is called dichromism, mainly red color blindness and green color blindness.
Red-green color blindness is extremely common. It was discovered by the famous scientist Dalton.
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Generally, it is slightly red and green, and it is clear that the traffic lights and monochromes in life are clearly distinguished, that is, the color blindness detection during the physical examination, and the mixed colors of Tupu are a little indistinguishable For details, please consult and add the screen name Mingmei New Vision.
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Hehe, I am also red-green color blind, but it is relatively light, and it is not easy to distinguish between red and green colors, or it is not easy to distinguish between red and green colors.
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Question 1: What is the root cause of color blindness in men compared to women in the color blindness of Domori Sakura? The color blindness gene is already a dominant gene on the X chromosome, so the female has xbxb (color blindness) xbxb xbxb The prevalence is 1 3 The male has xby xby (color blindness) The prevalence is 1 2 There are more males than females in the world So there are more males with color blindness than females I hope my answer satisfies you!
Ahh Handwritten.
Problem 2: Analysis of human red-green color blindness Human red-green color blindness is accompanied by X recessive inheritance, and the pathogenic gene is on the X chromosome, if it is heterozygous, it is generally a carrier, and the phenotype is normal. If the mother is the carrier and the father is normal, the son has only one X chromosome, and if the chromosome from the mother is the X chromosome that carries the disease-causing gene, the disease may occur.
If you give birth to a daughter, you may be a carrier, or you may be completely normal.
Question 3: What is the cause of color deficiency Hello, color deficiency is the difficulty in distinguishing the most color, red-green color blindness is the most common, color deficiency is not as serious as color blindness, and most of the most common are caused by genetic reasons.
Question 4: A question about red-green color blindness and philosophy 130 points The question is hidden.
Question 5: What is the cause of the weakness of the gods? Analysis:
Causes of color weakness:1Congenital.
It is mostly recessively inherited, such as the father has color blindness, which can be passed on from daughter to grandson. **Mainly caused by the lack of three substances that sense color in the cone cells on the retina. If there is a lack of red color-sensitive substances, red color blindness occurs; In the absence of green color-sensitive substances, green blindness is formed.
2.Acquired. Various diseases of the eye, such as refractive interstitium, retinal cells, optic nerve, and optic center, will cause color blindness and color weakness.
To cure acquired color vision disorder, the premise is to cure the eye disease first.
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1. False same-color diagram.
Commonly known as color blindness, it is the use of the same shade of hue but different color dots to form numbers or graphics, color vision impairment people have difficulty in identification, wrong or unable to read, can be in accordance with the color blindness table to confirm what kind of color vision abnormality.
2. Color harness test.
It is to mix different colors and shades of wool bundles, so that the subject can pick out the same color as the standard wire harness. This method is time-consuming, and can only be approximate qualitative, not quantitative, and is not suitable for large-scale screening examinations.
3. Color mixing tester.
It can quantitatively record the amount required for red-green light matching to determine red-green sensory anomalies, which can be both qualitative and quantitative.
Because red-green color blindness is inherited recessively with the X chromosome, males only need one disease-causing gene to be infected, because males have the other Y chromosome, and females need to have two disease-causing X chromosomes to cause disease.
Red-green blindness in humans:1. Red-green color blindness: It was discovered by Dalton, so it is also known as Dalton's syndrome. >>>More
Yellow, either earthy yellow or yellow.
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It depends on what kind of color blindness it is.
For example, red-green color blindness they just can't distinguish between red and green, and what they see is either brighter than red, such as peach, and the same is true when they look at green. >>>More