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A woman heterozygous for Huntington disease reproduces with a man without the condition. What are the chances the child will have the condition?
Wiki User
∙ 13y ago
There is a 50% chance that Mary's mother passed along her gene for HD. Since this cannot be "canceled out" by her father's unaffected genes, Mary has a 50% chance of having and expressing that bad gene. If Mary's father was also heterozygous for HD, there would be a 75% chance that she would get at least one bad gene.
To add the the answer above, Huntington's disease doesn't typically show itself until a person is between 35 to 50 years of age. The reason that the normal genes for the father don't "cancel out" any affected genes passed on my the mother is because this is a dominant genetic disorder
there are lots of diseases and they keep on being made. PS. stay safe and disease free.
Wiki User
∙ 13y ago
Wiki User
∙ 13y ago50%
It is generally an autosomal dominant disorder, meaning that if you have one gene (heterozygous) you will have the disease.
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A man and a woman are both heterozygous Freckles are dominant over no freckles What are the chances their children will have freckles?
a 100% chance for freckles.
Black hair is dominant over blond hair A blackhaired woman and a blondhaired man reproduces What are the chances of this couple having a blond -haired child?
50%
If the mother is heterozygous for a trait like widows peak what are the chances that the eggs she produces will have the gene for a widows peak?
Half her eggs will have the widow's peak gene, and the other half will have the other allele, so it's 50%.
Which is the dominant gene father has dark brown eyes mother has blue eyes?
Sure you don't mean heterozygous dominant? If you don't there would be no blue eyed offspring. Let's assume you meant heterozygous dominant.B = brownbl = blueBbl X Bbl1/4 of the offspring would have blue eyes, 25%.
What are the possible phenotypes of the offspring between a parent who is a heterozygous carrier for cystic fibrosis and a homozygous normal parent?
The chances are one half. You will most likley have 2 children without the gene, and 2 with one gene. Since the normal parent has the dominate allele, the Cystic Fiborisis will not be present.
A man in 30s has 3 children discovers that his mother has Huntington disease his father is unaffected. What is probability that his first child will develop Huntington's?
That depends on whether the man in his 30s inherited HD from his mother. If he did not, the chances are zero. If he did, the chances are 50-50 for each child that they will inherit from him.
What are the chances of having kids that can roll their tongue if a heterozygous tongue roller has kids with someone who cannot roll?
25%
A man and a woman are both heterozygous Freckles are dominant over no freckles What are the chances their children will have freckles?
a 100% chance for freckles.
What if your mother and three brothers had huntington disease you are 59 years old with no symptoms What is the likelyhood of you developing the illness now?
50-50 chances you have it.
Black hair is dominant over blond hair A blackhaired woman and a blondhaired man reproduces What are the chances of this couple having a blond -haired child?
50%
When does huntington's disease appear?
The age at which the SYMPTOMS of HD appear varies. For MOST people, it is during their 30s-40s. With some people, it is older. There are a very few cases of juvenile HD, where the symptoms appear with children a few years old- but that is extremely rare.
What is the probability of having a child with attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
Attached earlobes are a recessive trait. When one parent has attached earlobes and the other is heterozygous for free earlobes, the chances of any particular offspring having attached earlobes is fifty percent.
Can people with hypospadias join the military?
if it is Education Core then there are chances to accept you otherwise there are a lot of chances that you will be rejected, however, the condition of Hypospadias will be observed,
What are the chances of getting a square shape when 2 heterozygous square shapes are crossed?
75% 3/4 chance of it being square. 25% 1/4 change of it being round.
You are A your wife is O- what will the child be?
Your child can be anything. It doesn't really matter what the parents are. Anything that runs through the family your child can be. The chances of being an O are very small but it is still possible. It depends on whether or not you are homozygous or heterozygous A. All O blood is genetically homozygous. If you are blood type AO then there is a 50% chance of Homozygous O (OO) and 50% chance of heterozygous A (AO). If you are Blood type AA then there is a 100% chance of heterozygous A (AO)
Is Huntington's disease curable?
No but it is a very slow and unpainful processno sadly huntingtons disease(also known as huntingtons chorea) has no known cure.
What are the chances of having a sex unproctevtive having a baby?
1/10 depends on the condition of the woman
