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Is trisomy 13 inherited by a dominant or recessive trait or is it sex linked?
Wiki User
∙ 15y ago
Trisomy 18 is a form of chromosomal aberration. It is neither recessive nor dominant. Neither does it show co-dominance or incomplete dominance factor. It arises due to the presence of an extra chromosome 18 in the somatic cells.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoNone of these!
"Trisomy" means that there are three copies of a particular chromosome, so trisomy 13 is characterized by three copies of chromosome 13.
There are two causes of trisomy:
During meiosis I, homologous chromosomes, such as the two copies of number 13, should separate at anaphase. Sometimes both copies go to the same pole, eventually resulting in a gamete with one copy too many of the chromosome. At fertilization, this nucleus is paired with that of a regular gamete, forming a zygote with trisomy.
Parts of chromosomes may break and combine with other chromosomes. This is called translocation. In particular, one type, Robertsonian translocation, affects chromosomes whose centromeres are near one end of the chromosome, namely chromosomes 13, 14, 15, 21, and 22.
Trisomy 13 can result from one gamete inheriting both a regular copy of chromosome 13 and another chromosome (usually 14) carrying an additional long arm (q) of chromosome 13. When this gamete combines with a normal gamete, the zygote inherits two copies of chromosome 13, plus a third copy of most of the genes in chromosome 13. Photos of children with Robertsonian translocation off the LWT13 website. Use the SEARCH option for Translocation. http://www.livingwithtrisomy13.org
Wiki User
∙ 15y agodominant
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What type of inheritance pattern (are the A and B alleles to each other (Autosomal dominant-Regular dominant-recessive relationship, X linked, co-dominant, incomplete dominant)?
Incomplete dominance
Does huntington's chorea disease is sex linked or inherited on autosomal genes?
No, it is autosomal dominant.
Who always wins a dominant gene or a recessive gene?
The dominant gene always win because it is represented by upper case letters. And the recessive genes loses all the time because it is represented by a lower case letter.A dominant gene in most cases. If it an autosomal trait (on body cells) in all cases the dominant gene will win. In the case with x, sex linked recessive traits the recessive trait will appear in males if only one gene is presentA dominant gene in most cases. If it an autosomal trait (on body cells) in all cases the dominant gene will win. In the case with x, sex linked recessive traits the recessive trait will appear in males if only one gene is present
Is an x linked dominant trait the same as an x linked recessive gene?
An X-linked recessive trait is coded for by a gene on the X-chromosome and is not dominant (is canceled out by the presence of a different allele). Example of X-linked recessive traits are; Haemophilia A & B and Duchenne muscular dystrophy.
Is dwarfism a sex-linked disease?
This is sex linked and is inherited through the parents.
How does a person inherit hemophilia and is it dominant or recessive?
It is a sex-linked recessive trait inherited from the mother.
What are the probable mode of inheritance from a pedigree diagram showing phenotypes?
The modes of inheritance are y-linked, x-linked, and mitochondrial. Inherited traits can then be recessive, dominant, or autosomal depending on how they are inherited.
What are the four complex patterns of inheritance?
Autosomal dominant, Autosomal recessive, X-linked recessive and X-linked dominant
Is color blind dominant or recessive?
recessive
How is adrenoleukodystrophy inherited?
It is an X-linked recessive disorder.
If a daughter expresses an x-linked recessive gene she inherited the trait from?
For a female to express an X linked recessive gene, she must have inherited it from both parents. Every female (without disease) has two X chromosomes: XX, while males have an X and a Y: XY. A recessive gene is one that will not be expressed if there is a copy of the dominant gene present. sex linked genes have their own special set of rules because the sex chromosomes are the only ones which vary by presence or absence between different people. Because a male only has one X chromsome, he will express all the genes on that chromosome; this can be used to determine if a gene is sex linked and recessive/dominant. A recessive gene will not be expressed if there is a dominant gene for that allele present. This means that if a female (XX) is expressing an x-linked recessive trait, she must have two recessive genes for that trait; therefore she inherited the trait from both parents.
How do you know if a trait is sex linked dominant or sex linked recessive?
get a test
Is pku sex linked recessive or sex dominant?
I think I read somewhere that there are some variants of it that are recessive and others that are dominant.
Why are x linked alleles expressed in males even if they are recessive?
X-linked are not recessive nor dominant. X-linked just do not show. On the sex-linked chromosomes the Y chromosome of the X-Y pair dominates the trait whether its recessive or dominant!Actually, all x-linked alleles are expressed because males only have one x-chromosome, so whatever is there, dominant or recessive, is expressed.
Is duchenne muscular syndrome dominant or recessive?
It is a recessive X linked form of muscular dystrophy
What are some patterns of humans inheritance?
Autosomal dominant Autosomal recessive X linked recessive.
What are some patterns of inheritance in humans?
Autosomal dominant Autosomal recessive X linked recessive.
