0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
When you're blind what color do you see People always say black but is it really that way White is the color of nothing. My three year old sister is completely blind so I was just wondering.?
Because no light is entering the eye one can assume that what blind people "see" is totally black.
What does the middle of three brothers mean?
If YOU have two brothers and one is older than YOU and one is younger than YOU then YOU are the middle of three brothers.
What causes a person to see only one color?
I think it's color blind...
Is there really such thing as color?
well OF COURSE! unless ur blind or color blind you always see colorActually, even if you're color blind, you still see colors. People who are color blind only can't see certain colors and get colors confused with one another. But yes, colors do exist.
The gene for color blindness is a recessive allele located on the x chromosome. If a color blind man and color blind woman have one son and three daughters how many will be color blind?
Women can not be colorblind, only men. For questions like these a punnett square is useful. Men can not carry the colorblind trait, but women can. I know this is kind of confusing. When a carrier ( a woman with the color blind trait) has children with a man ( color blind or not) her kids will have 50% chance of having that trait. If its a girl, she will be the carrier. If its a boy, he will have the colorblind trait. SO TO ANSWER YOUR QUESTION: Theoreticaly, 1 of the daughters will be the carrier, and the son will have a 50% chance of being colorblind. Women can be colorblind, its just rare. About every 6400 women one is colour blind and with men, every 80 men 1 is colour blind.
Does the daughter and son suffer from color blindness if their mother is suffering from the color blindness disorder?
If the mother is color blind, the son will be color blind. The daughter will only be color blind if the father is also color blind. As to if they will suffer from it, that depends on their self esteem and whether or not they choose to view themselves as a victim as their mother apparently does. It should be noted that although many people have color blindness, it is rare to actually suffer from it. One possible way that one might suffer is if s/he were attempting to disarm a bomb and could not tell what color the wires were.
What is the probability that a woman who is a carrier of the colorblind gene and a color blind man will have a first son who will be color blind?
The probability is 0 (but the daughter will be a carrier of the color blind gene). This is because the gene dictating whether someone is color blind or not is linked to the X chromosome (and not the Y). The color blind gene is a recessive gene whilst the normal color vision gene is a dominant gene. Hence if a girl (XX) has one normal vision gene (from one parent) and one color blind gene (from the other parent), her normal vision gene will be dominant to the recessive color blind gene and hence she will have normal vision (but she will be a carrier of the color blind gene). If both her parents contribute the recessive color blind gene to her, then she will be color blind. For a woman (XX) to be color blind, she needs to be have both genes to be recessive (ie where there is no dominant normal color vision gene to dominate). For a man (XY), as long as the X gene contributed by his mother is a color blind gene, he will be color blind because he has no other X chromosome where a dominant normal color gene could reside. Hence, to answer the question, a man with normal color vision (XY, with a dominant normal color vision X gene since the gene can't be the recessive color blind gene otherwise he will be colorblind) and a colorblind woman (XX, both recessive color blind genes), will each contribute an X each the child. The man will contribute his only X chromosome which carries the normal color vision X gene and the woman can only contribute a recessive color blind gene. The man's normal color vision X gene will be dominant, and hence the daughter will definitely have normal vision (despite being a carrier).
Who wrote the Three Blind Mice poem?
It is said that Thomas Ravenscroft wrote Three Blind Mice
How are animals color blind?
That depends on exactly how you define the term.Humans are trichromats: our eyes contain color receptors that are sensitive to three different spectral bands.In "color blind" people, there's something wrong with one or more of these types of color receptors.Most mammals are thought to have only two types of color receptors. This doesn't make them completely insensitive to color, but it does give them a type of color blindness.Sea mammals appear to only have one type of color receptor, meaning they can only distinguish between colors based on their brightness.
Can one twin be color blind and the other not?
Yes and no. some people are only color blind when certain colors meet for example: if you were black and yellow color blind a bee would only be one of the colors.
Is one diretion all brothers?
Zayn has three sisters and no brothers Liam has three older sisters and no brothers Louis has four sisters and no brothers Harry has one sister and no brothers Niall has no sisters and one brother
Did Christopher Columbus have any sisters or brothers?
Christopher Columbus had three brothers and one sister Bartolomeo, Giovanni Pellegrino and Giacomo were the three brothers and Bianchi was the name of his sister
