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There are three common Blood type alleles: A, B, and O. We all have two alleles, one inherited from each parent. The possible combinations of the three alleles are: OO; AO; BO; AB; AA; BB.

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14y ago
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11y ago

One per parent. Therefore daughter organism ends up with 2 copies altogether (one from each parent).

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11y ago

You get one allele from each parent and what ever is dominent is showen.

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12y ago

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Q: How many alleles for a trait are passed down from each parent?
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Related questions

What will determine the genotype of an organism?

The alleles that are passed from parents to offspring


Why is heredity important?

it's a genetic trait that is passed down from the parent to there offspring.


What is a trait controlled by three or more alleles have?

multiple alleles


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An inherited trait is a charateristic passed from parents to offspring.


Why people get ADHD?

it is a trait passed down genetically


What is a characteristic that is passed down from a parent to its offspring?

Dumb question, im in 11th grade and I know that's a dumb question. Just about everything can be passed down. Height is a gene, eye color is a gene..the list goes on. No offence but you kind of fail at science, I learned this in 6th grade.


How are autosomal disorders passed down?

the disorder is usually either autosomal recessive or autosomal dominant. they are passed down from the parents to the next generation. autosomal reccessive diseases only are when one parent gives one reccessive allele and the other parent gives the other reccessive allele. A dominant autosomal disorder can be inherited with one or two of the alleles.


How can a parent learn the risks of having a child with a genetic disorder?

A parent can learn the risks of having a child with a genetic disorder by looking at their own history. A genetic disorder is... da da da da! Genetic! so the traits of this disorder would be passed down through the generations. If both parents have family members with the trait or if the disorder is a dominant trait then there is a high chance of the disorder being passed down to the child. If the trait is recessive and only one parent has the genetic disorder in their family history then there are some pretty low chances of it being passed along to the child. Even if the trait is recessive, if both parents have the diorder in their history then there is about a 50% chance of the child having the disorder.


What can cause mongolism?

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Why are your eyes blue?

Blue eyes are a recessive trait that is passed down by the parents to the child through their genes.


What is it called when a trait is being passed down from one generation to the other?

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Can a girl having o positive blood group have a child with a person having AB positive blood group?

No. Only 1 allele each can be passed down from each parent, so it is impossible for the child to have 2 dominant alleles if 1 parent has blood group 0.