What will happen if a normal woman married with color blind man?

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).

What is the probability that a woman whose father was color blind will have a son who is color blind?

50%. 1 of the two male offspring will definately be color blind. Do a punnett square with the father having normal vision and the mother being a carrier.

If a color blind womnan married a color blind man what would their ofsprings genotype and phenotype be?

you can't predict that. it depends on what sex the offspring is. if it is a female, she could be color blind because her father is, but a male could be color blind either way. because color blindness is carried on the Y chromosome and not the X chromosome.

A color-blind woman mates with a male with normal color vision Which of these results would indicate that color blindness is caused by an X-linked recessive allele?

If the couple has a color-blind son, it would indicate that color blindness is caused by an X-linked recessive allele. This is because sons inherit their single X chromosome from their mother, who carries the recessive allele for color blindness but does not express it due to her second X chromosome providing the normal color vision gene.

Color blindness is an X-linked recessive trait A color-blind man has a daughter with normal color vision She mates with a male who has normal color vision What is the expected phenotypic ratio of t?

The expected phenotypic ratio for their offspring is 1:1, with a 50% chance of being color blind (male with the X-linked recessive trait) and a 50% chance of having normal color vision. This is because the daughter is a carrier of the recessive allele, which can be passed on to her offspring regardless of the father's color vision status.

Normal life expectancy of color blind?

Color blindness typically does not affect life expectancy. It is a hereditary condition that primarily impacts the way individuals perceive colors. People with color blindness can lead normal, healthy lives without any impact on their overall life expectancy.

What is the risk of a colour blind child in a family when father is colour blind and mother is normal?

if the child is a boy, 0%. if it's a girl, either 100% if the trait is dominant in the father or 50% if it is recessive. there is also the possibilty of the daughter having it but just being a carrier (has the disease but no signs of it)

Can blind people have color eyes?

yes they can i have a friend who i blind in one eye but their eyes usaly have color. but their pupils are blured out but not missing.

If you was color blind could you serve in Vietnam?

Apparently color blind people were sent in first, since they are naturally able to detect the contrast of camouflaged enemies in the jungle areas as opposed to normal people who would detect the color as blended in.

Are tortoise color blind?

Yes. They are color blind. :)

Can 2 persons with normal vision produce a color blind son?

Yes, it is possible. Color blindness is usually caused by a genetic mutation on the X chromosome. If both parents are carriers of the mutated gene, they can pass it on to their offspring, resulting in a color blind son.

Are street dogs color blind?

All dogs are color blind