0
What is a sex- linked disorder caused by a reccessive allele on the x chromosome?
Wiki User
∙ 8y ago
yes
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What are the genetic disorder caused by deletion from chromosome?
Deletion Syndrome or Williams Syndrome
Is hemophilia A sex-linked?
No. It is caused by a recessive allele on the X chromosome.
A gene on the female chromosome having no allelic partner on the y chromosome would be what?
An individual (male) with an allele on the X chromosome but no corresponding allele on the Y chromosome is described as hemizygous. Genes which are inherited in this way are described as sex-linked or X-linked. An example is hemophilia - the inability of the blood to clot. It is caused by a recessive allele, so males only need to inherit one copy to develop the characteristic. Females can inherit one hemophilia allele and one normal allele, so they can act as carriers of the disease without developing it themselves. See http://en.wikipedia.org/wiki/X-linked_gene
What is an example of a genetic disorder that is caused by insertion of extra codons of the X sex chromosome?
Fragile X Syndrome
What feature of a pedigree would allow one to conclude that the disorder was caused by a dominant allele?
2 uneffected parents that have an affected child
Is Down syndrome a genetic disorder or a chromosome disorder?
Down syndrome is a chromosomal disorder. It is caused by having 1 extra chromosome (chromosome 21).
Is hemophilia caused by a dominant allele on the x chromosome true or false?
false
What are autosomal dominant inherited disorders?
An autosomal disorder is one which is caused by a gene or genes on an autosome - a non-sex chromosome. Dominant means that if one allele for the disorder is present, then the person will have the disorder. For example, if H is the allele for Huntington's disease and a person has Hh - they will have the disease. Examples of autosomal dominant disorders are; Huntington's disease, Romano-Ward syndrome, Timothy syndrome and Jackson-Weiss syndrome.
What causes birthmarks?
well some people believe a birthmark is caused by a recessive allele on the y chromosome
What is a sex linked disorder caused by a recessive allele on the x chromosomes?
colour blindness
What are the genetic disorder caused by deletion from chromosome?
Deletion Syndrome or Williams Syndrome
What is the disorder caused by having an abnormality on chromosome 21?
Down's Syndrome or trisomy 21.
Is hemophilia A sex-linked?
No. It is caused by a recessive allele on the X chromosome.
Is hunters disease dominant or recessive?
Huntingdons chorea is caused by a dominant allele.
What is a disorder caused by a dominant allele which causes the gradual breakdown of cells in the brain leading to death?
Huntington's Disease!
A gene on the female chromosome having no allelic partner on the y chromosome would be what?
An individual (male) with an allele on the X chromosome but no corresponding allele on the Y chromosome is described as hemizygous. Genes which are inherited in this way are described as sex-linked or X-linked. An example is hemophilia - the inability of the blood to clot. It is caused by a recessive allele, so males only need to inherit one copy to develop the characteristic. Females can inherit one hemophilia allele and one normal allele, so they can act as carriers of the disease without developing it themselves. See http://en.wikipedia.org/wiki/X-linked_gene
Is Huntington's disease caused by 3 chromosomes of the 21st pair?
page 314 Huntington's disease is lethal GENETIC DISORDER caused by a rare dominant allele. It's not a chromosonal disease, it is a genetic disorder. D
