Recessive allele disorders are just as they sound - they are disorders that are a result of a prevalent recessive allele in one's genetic makeup. A recessive allele disorder will rarely occur since it is dependent on the crossing of two heterozygous parent cells, but it can lead to interesting consequences. An example of a recessive allele disorder is hemophilia - the body's inability to clot blood - and it has affected much of the European royalty in history, such as Queen Victoria of Great Britain.
If a genetic disorder is carried on a recessive gene, offspring will only have the disorder if both parents have the recessive gene.
Recessive
Muscular dystrophy is a sex-linked recessive disorder.
You did not list a "these" to chose from.
The probability would be 0.5 or 50%. A heterozygous woman will pass on the X chromosome with the recessive allele to 50% of her sons, and since the disorder is recessive, the son would only have the disorder if the X chromosome with the recessive allele is inherited from the mother.
Both X chromosomes must carry the recessive trait. Since males only have one X chromosome, it is much easier for males to have the recessive phenotype. Put another way, a female would have to receive an X chromosome with the recessive gene from both parents, which would mean the father already displays the recessive disorder.
No. Autism is a neurodevelopmental disorder
The child will have the disorder, only if the recessive allele from both the parents is transferred to the child. Therefore, the probability is 1/4.
It is an X-linked recessive disorder.
It is autosomal recessive and it is not a disorder! Cystic Fibrosis is a disease.
Yes, Color Blindness is recessive, Not dominant. :)
A person who has inherited an autosomal recessive disorder will have two copies of the mutated gene, one from each parent. This results in the individual expressing the disorder. Symptoms can vary depending on the specific disorder.