Sex-linked dominant is a rare way that a trait or disorder can be passed down through families. A single abnormal gene on the X chromosome can cause a sex-linked dominant disease.
Related terms and topics:
Inheritance - sex-linked dominant; Genetics - sex-linked dominant; X-linked dominant; Y-linked dominant
InformationInheritance of a specific disease, condition, or trait depends on the type of chromosome affected (autosomal or sex chromosome). It also depends on whether the trait is dominant or recessive. Sex-linked diseases are inherited through one of the sex chromosomes (the X or Y chromosome).
Dominant inheritance occurs when an abnormal gene from one parent is capable of causing disease, even though a matching gene from the other parent is normal. The abnormal gene dominates the gene pair.
For an X-linked dominant disorder: If the father carries the abnormal X gene, all of his daughters will inherit the disease and none of his sons will have the disease. If the mother carries the abnormal X gene, half of all their children (daughters and sons) will inherit the disease tendency.
In other words, if there are four children (two males and two females) and the mother is affected (one abnormal X, she has the disease) but the father is not, the statistical expectation is for:
If there are four children (two males and two females) and the father is affected (abnormal X, he has the disease) but the mother is not, the statistical expectation is for:
This does not mean that the children will necessarily be affected.
Sex-linked dominant is a rare way that a trait or disorder can be passed down through families. A single abnormal gene on the X chromosome can cause a sex-linked dominant disease.
Related terms and topics:
Inheritance - sex-linked dominant; Genetics - sex-linked dominant; X-linked dominant; Y-linked dominant
InformationInheritance of a specific disease, condition, or trait depends on the type of chromosome affected (autosomal or sex chromosome). It also depends on whether the trait is dominant or recessive. Sex-linked diseases are inherited through one of the sex chromosomes (the X or Y chromosome).
Dominant inheritance occurs when an abnormal gene from one parent is capable of causing disease, even though a matching gene from the other parent is normal. The abnormal gene dominates the gene pair.
For an X-linked dominant disorder: If the father carries the abnormal X gene, all of his daughters will inherit the disease and none of his sons will have the disease. If the mother carries the abnormal X gene, half of all their children (daughters and sons) will inherit the disease tendency.
In other words, if there are four children (two males and two females) and the mother is affected (one abnormal X, she has the disease) but the father is not, the statistical expectation is for:
If there are four children (two males and two females) and the father is affected (abnormal X, he has the disease) but the mother is not, the statistical expectation is for:
This does not mean that the children will necessarily be affected.
Reviewed ByReview Date: 04/26/2010
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
Color blindness is a recessive sex linked trait.
Dominant. he has a homozygous genotype
Straight pinky is dominant
dominant
dominant
Color blindness is a recessive sex linked trait.
dominant genes for freckles
It is dominant.
In my opinion it is dominant.
autosomal dominant
A non-dominant group is the group with less power.. For example women are non-dominant, men are dominant, heterosexuals are dominant, gays are non-dominant. The group that sets the polices, laws and "standards" OS dominant. The group with power is the dominant group.
A non-dominant group is the group with less power.. For example women are non-dominant, men are dominant, heterosexuals are dominant, gays are non-dominant. The group that sets the polices, laws and "standards" OS dominant. The group with power is the dominant group.
Huntingdons chorea is caused by a dominant allele.
it is dominant
Straight pinky is dominant
Dominant. he has a homozygous genotype
Dominant and sub-dominant refers to notes of a scale. The dominant is the fifth note (represented with a roman numeral, V) of a scale while the sub-dominant is the fourth (IV) note of that scale. For example, in scale of C major, the dominant is G and the sub-dominant is F.The terms dominant ans sub-dominant can also refer to chords, scales or keys. A dominant chord is one that is built on a dominant note. Musically, the dominant chord is considered to be unstable and must be resolved. Therefore, a dominant chord can be used to build tension in a chord progression.Dominant keys refer to the relationship between notes. For instance, key of G is the dominant key relative to C. Music that changes key often shifts between a tonic and its dominant.