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What is the difference between dominant and recessive alleles on the basis of DNA?
Dominant alleles override recessive alleles. For instance, if there is both a dominant allele and a recessive allele present the dominant allele will be the trait that you end up with. If you have two recessive alleles, then you will have the recessive trait. :::::::::::::::brown eyes overrided blue eyes, because they are darker:::::::::::::::::: usually a darker color overpowered/override the lighter ones....i dont really know why but my science teacher said so......
What is the result of two recessive alleles joined?
When two recessive alleles are joined together in an individual, the individual will display the recessive trait associated with those alleles. This is because recessive alleles only express themselves when a dominant allele is not present.
What is the definition of homozygous recessive?
Homozygous recessive refers to an individual having two recessive alleles for a particular gene, meaning both copies of the gene are the same and code for the recessive trait. This results in the expression of the recessive phenotype.
What happens when a single gene has two alleles?
Two alleles represent a gene. ETC- The paternal (fathers) allele is B (for brown eyes) The mothers (maternal) is b ( for blue eyes) The capital B is the dominant allele, lowercase b is recessive. Therefore, a punnet square will show the offspring can be either hetrozygous or homozygous (recessive or dominant) Alleles represent the charactersitic, while a gene is a segment of DNA where heredity is based.
What are the two terms for having matching alleles for a certain trait?
The two terms for having matching alleles for a certain trait are "homozygous dominant" (two dominant alleles) and "homozygous recessive" (two recessive alleles).
Are blue eyes dominent?
They're recessive. It can only appear if you have two alleles of blue eyes.
Example of heterozygous?
homozygous means you have two alleles with the same characteristic. example; two alleles for brown eyes recessive means that when you have two different alleles, one of then doesn't show its trait example; one allele for brown eyes and one allele for green eyes gives brown eyes, because green eyes are recessive people who have green eyes have homozygous recessive alleles for green eyes (two alleles for green eyes)
What is meaning of alleles?
An allele is the different forms of a gene. For example the gene for eye colour has the alleles; brown, blue, green etc. In every person there are two alleles for every gene but both alleles are not always the same. They can be dominant and recessive; dominant alleles are expressed no matter what other allele is present, recessive alleles require both alleles to be the recessive one to be expressed. E.g. say B is the allele for brown eyes and b is the allele for blue eyes. Brown is dominant therefore if someone had Bb or BB they'd have brown eyes and if they had bb their eyes would be blue.
Why did Hitler want to get rid brown hair blue eyed people?
Because the combination of brown hair blue eyes is strange. The person would get two dominant alleles for brown hair and two recessive alleles for blue eyes. It is not supposed to happen.
Suppose that the alleles for blue eyes in cats is recessive and your cat has blue eyes. what statement can you make about your cat's genotype for eye color?
A+ It is probably homozygous for the recessive allele.
What decides what color eyes you have?
What decides your eye color is your genotype that you get from your parents. if you have blue eyes, you have to have two recessive traits. Yet, any other color has to have a dominant allele to create the color. But, scientists already can tell that if you have blue eyes, your genotype is, 'bb.' Or, two recessive alleles.
What is it called when an organism inherited two of the same alleles of a gene from its parents?
Then you will have two copies of the same gene, a condition known as having identical alleles. If the particular gene is recessive (such as for blue eyes) this is the only way it will be able to express itself.
What is the difference between homzyguos and heterozyous?
Homozygous recessive: is when the genes are both recessive Homozygous dominant: is when the genes are both dominant (traits show) Heterozygous dominant: is when one gene is dominant and one is recessive (traits show) Heterozygous recessive: is the same as heterozygous dominant but the dominant genes are inactive
What is the difference between dominant and recessive alleles on the basis of DNA?
Dominant alleles override recessive alleles. For instance, if there is both a dominant allele and a recessive allele present the dominant allele will be the trait that you end up with. If you have two recessive alleles, then you will have the recessive trait. :::::::::::::::brown eyes overrided blue eyes, because they are darker:::::::::::::::::: usually a darker color overpowered/override the lighter ones....i dont really know why but my science teacher said so......
Can two brown eyed parents have a blue eyed baby even if no one in the family is blue eyed?
I believe so, if both the parents have recessive alleles for blue eyes.
Why is there a greater chance of getting a dominant trait rather than a recessive trait?
A dominant trait occurs when either both alleles are dominant or one allele is dominant and the other is recessive. This is because a dominant allele overpowers a recessive allele. In order to have a recessive trait both alleles must be recessive.
If mother has blue eyes father has brown eyes and grandmother has brown eyes on mothers side?
If what you're asking is how did your mother get blue eyes, then I can answer that. Brown is the most common eye color, meaning that it is obviously the dominant allele. Your mother must have gotten two recessive alleles for blue eyes; it's the only way that the recessive blue wouldn't be masked by the dominant brown.
