A sex linked dominant trait could be on the X chromosome of either parent and the phenotype of any individual carrier would be that of the dominant trait. A
father with the dominant characteristic on his single X chromosome would produce daughters that are 100% carriers and would not pass the characteristic on to his sons.
A mother who is a dominant X linked carrier would pass the dominant characteristic on to half hersons and half her daughters all of which would
show the trait phenotypically.
A sex linked recessive father would produce 100% carrier daughters. His sons
would not get the recessive allele from him.
A sex linked recessive carrier (heterozygous) mother would pass the trait on
to 50% of her children and 50% of her sons would show the recessive trait
genetics.
With autosomal recessive diseases there is another allele to compensate for the disease allele. say for example, a female has a mutation in one of here genes that means the gene no longer functions. if she were to pass this allele on to her offspring, as long as the father of her children had a healthy copy of that gene, no children will have the disease (though there is a 50% chance of them being carriers)
with sex linked diseases (i.e. x-linked diseases) however, males will always be suffers. the Y chromosome carries very little information. most of the genes it has are just involved with making the individual a male, and the male relies on the single X chromosome inherited from their mother. if this has a disease allele on it (even is if it is recessive) the male will have the disease, as there is no paternal allele to compensate for the disease state.
X-linked traits are carried on the X chromosome, two of which are present in females, but only one is present in males. In males, only one instruction (allele) exists for an x-linked trait, thus whichever one is present will be expressed. In females, an x-linked dominant trait will be expressed if present; an x-linked recessive requires both alleles to be the recessive form to be expressed if present (as in hemophilia and other such diseases).
ask kajuira
The answer is that The difference is that dominant dominates, and recessive is dominated.
They are the same
dominant-appears in first generation recessive-seems to dissapear
In one allele (recessive) the transcriptional or post translational processes does not occur due to some modification and doesn't express while in other allele it occur (dominant).
"Heterozygous" and "homozygous" are terms that refer to alleles, which, in genetics determine what trait, from which parent, will appear in the offspring. Alleles can be either Dominant or Recessive. Every organism has two alleles, which can both be dominant, both recessive, or one of each.So,If an organism heterozygous, it has one recessive and one dominant allele.If an organism is homozygous then both of its alleles are the same; you need to specify if they are homozygous recessive (both alleles are recessive) or homozygous dominant (both alleles are dominant).
dominant-appears in first generation recessive-seems to dissapear
The answer is that The difference is that dominant dominates, and recessive is dominated.
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
They are the same
dominant-appears in first generation recessive-seems to dissapear
An individual must have 2 recessive alleles in order for a trait to show up. One must only have 1 dominant allele in order for a trait to occur.
In one allele (recessive) the transcriptional or post translational processes does not occur due to some modification and doesn't express while in other allele it occur (dominant).
the dominant trait is the stronger one and the recessive trait is the weaker one
Dominant is stronger than recessive. So you can only have the phenotype ( visual characteristic ) of a recessive allele if you have 2 recessive alleles in your DNA , and other combination the dominant allele would be predominant
"Heterozygous" and "homozygous" are terms that refer to alleles, which, in genetics determine what trait, from which parent, will appear in the offspring. Alleles can be either Dominant or Recessive. Every organism has two alleles, which can both be dominant, both recessive, or one of each.So,If an organism heterozygous, it has one recessive and one dominant allele.If an organism is homozygous then both of its alleles are the same; you need to specify if they are homozygous recessive (both alleles are recessive) or homozygous dominant (both alleles are dominant).
A recessive trait is a trait that is not shown or expressed physically but is retained within the persons genes, whereas a dominant trait is a trait which opresses the recessive trait and is prodominantly shown or expressed physically. For example it is possible for two red-haired parents, both with recessive dark haired genes, to have a dark haired child. they must both have the recessive gene or the dominant gene of red - hair will be expressed in the child
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......