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Recessive gene alleles are ones for which two copies are required to cause disease. Many people may have one copy and be phenotypically normal (non-diseased). People who have the disease will have gotten one copy from each parent, each of whom may be normal unless they, themselves have two copies.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoThey are passed from parents to offspring but remain hidden untill in homozygous condition .
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Does FAP follow a recessive or dominant inheritance pattern and why?
FAP follows both an autosomal recessive and autosomal dominant pattern depending on which gene you inherit the disease from. If inherited through the APC gene, which is most common, it is autosomal gdthe disease. If inherited through the MUTYH gene it is autosomal recessive, meaning that both parents were carriers of the disease or they both were living with the disease.
Is Canavan disease inherited?
Canavan disease is an autosomal recessive genetic condition
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.
What does recessive mean as it relates to genes?
Recessive, as in recessive genes, refers to an inherited characteristic or trait that is expressed only when two copies of the gene responsible for it are present.
If a boy inherits a disease that is autosomal recessive he inherited it from his mother?
yes
Does FAP follow a recessive or dominant inheritance pattern and why?
FAP follows both an autosomal recessive and autosomal dominant pattern depending on which gene you inherit the disease from. If inherited through the APC gene, which is most common, it is autosomal gdthe disease. If inherited through the MUTYH gene it is autosomal recessive, meaning that both parents were carriers of the disease or they both were living with the disease.
What is an inherited eventually fatal disease of the exocrine cells that is carried by a recessive gene?
cystic fibrosis
Why can Cystic fibrosis be inherited even if neither parent has the disease?
Cystic Fibrosis is an example of a disease inherited as an autosomal recessive genetic disorder. Both parents of a baby who has Cystic Fibrosis have one abnormal recessive gene and one normal dominant gene and are therefore, Cystic Fibrosis carriers. Carriers are said to be heterozygous because they contain one normal copy of the gene and one abnormal copy. A baby who inherits cystic fibrosis has inherited the abnormal gene from both parents and is therefore said to be homozygous recessive.
What is meaning of recessive traits?
an inherited character determined by a recessive gene
What is a disease caused by an inherited abnormal gene?
Recessive diseases are severe and may lead to an early death. They include sickle cell anemia.Tay-Sachs disease.cystic fibrosis.phenylketonuria (PKU).
Is Stickler Syndrome a dominant gene or a recessive gene?
Most commonly is caused by a mutation in one of three types of collagen genes - COL2A1, COL11A1, COL11A2 and is a dominantly inherited disease. A recessive type has also beed described with a mutation in the COL9A1 gene.
Is inherited from only one parent the offspring Will have that genetic?
Recessive gene
Is Canavan disease inherited?
Canavan disease is an autosomal recessive genetic condition
2 A child is diagnosed with a rare genetic disease Neither parent has the disease How might the child have inherited the disorder?
Both parents are carriers of the recessive gene and if the child inherits that gene from both mother and father the child will have the disease even though the parents don't.
What form of Niemann Pick can be inherited?
All forms of NPD are inherited autosomal recessive disorders, requiring the presence of an inherited genetic mutation in only one copy of the gene responsible for the disease. Both males and females are affected equally.
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.
What does recessive mean as it relates to genes?
Recessive, as in recessive genes, refers to an inherited characteristic or trait that is expressed only when two copies of the gene responsible for it are present.
