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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:
- Autosomal dominant
- Autosomal recessive
- Chromosome
- Gene
- Genetic counseling and prenatal diagnosis
- Heredity and disease
- Inheritance
- Sex-linked recessive
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:
- Two children (one girl and one boy) with the disease
- Two children (one girl and one boy) without the disease
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:
- Two girls with the disease
- Two boys without the disease
This does not mean that the children will necessarily be affected.
What else can I help you with?
Is apert syndrome autosomal or sexlinked?
Apert syndrome is a autosomal dominant genetic disorder, meaning that only one copy of the mutated gene from either parent is necessary to inherit the condition. It is not sex-linked.
Is brown skin dominant or recessive?
Dominant - everything is dominant apart from diseases such as malaria, cystic fibrosis
What makes a dominant gene dominant?
GOD knows
How did Mendel represent factors for dominant traits?
Mendel represented factors for dominant traits using uppercase letters, such as "A" for dominant alleles. This convention helps distinguish dominant traits from recessive traits, which are represented by lowercase letters.
What is crossing a homozygous dominant or homozygous recessive with a heterozygous?
There is a 50% chance of a homozygous dominant and a 50% chance of a heterozygous.
Is apert syndrome autosomal or sexlinked?
Apert syndrome is a autosomal dominant genetic disorder, meaning that only one copy of the mutated gene from either parent is necessary to inherit the condition. It is not sex-linked.
What is the adjective of dominate?
It is dominant.
Is muscular dystrophy dominant or recessive?
autosomal dominant
Which is your fastest hand dominant or non dominant?
In my opinion it is dominant.
What does non dominant group mean?
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.
Are freckles dominant recessive or dominant dominant?
Freckles are considered a dominant trait, as they are caused by a dominant allele. This means that individuals only need to inherit one copy of the allele from either parent in order to have freckles.
Is arthritis dominant or recessive?
it is dominant
Dominant gene plus Dominant gene?
It would be definite that you have that gene or trait.
What is dominant and subdominant?
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.
What can be dominant or recessive?
Alleles can be dominant or recessive
Is glaucoma a dominant or recessive trait?
dominant
Every allele is a dominant?
no it can be dominant or ressive
