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Doctor insights on: Genetics Recessive And Dominant Genes

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Genetic (Definition)

From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more


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Are all autosomal dominant diseases inherited?

Are all autosomal dominant diseases inherited?

Or new mutations: Mendel's laws. For example, many cases of achondroplasia, which an autosomal dominant disease, happen in children of unaffected parents as a result of a mutation in a sperm or egg. ...Read more

Dr. Judy Orton Dr. Orton
10 doctors agreed:
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Is cystic fibrosis autosomal dominant in genetics?

Dr. Judy Orton Dr. Orton
10 doctors agreed:
Is cystic fibrosis autosomal dominant in genetics?

Recessive: Both parents must carry the gene with a 25% chance (1:4) with each conception that the baby will have cystic fibrosis. ...Read more

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Is the beta-thalassemia gene recessive or dominant?

Is the beta-thalassemia gene recessive or dominant?

Neither: People normally have 2 beta globulin genes. A mutation in one or both genes leads to 3 levels of beta thalassemia. The genetics of the disorder is not all-or-none nor dominant-recessive. Instead, more or worse mutations causes worse disease. One mutation = beta thal trait (mild symptoms), 2 mutations = beta thal intermedia (transfusions sometimes) or beta thal major (lifelong transfusions needed). ...Read more

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How is autosomal recessive inheritance different?

How is autosomal recessive inheritance different?

Both parents: Autosomal recessive inheritance means that you have to inherit the gene from both parents. Some examples: cystic fibrosis, sickle cell disease. ...Read more

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What are dominant vs recessive gene diseases?

See below: With a dominant gene trait, the child only needs to receive one copy of the abnormal gene. So, they have a 50% chance of getting the gene. With a recessive gene, the child needs 2 copies of the gene. So, they have a 25% chance of having both genes. ...Read more

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What is the difference between autosomal dominant and autosomal recessive inheritance?

What is the difference between autosomal dominant and autosomal recessive inheritance?

2 copies of genes: We all have two copies of each gene in our chromosomes. In autosomal dominant conditions you only need one copy of the gene to have the disease. In autosomal recessive conditions you need two copies in order to have the disease. It is called recessive because people with only one copy do not have the disease, that is the conditions recedes or is hidden. ...Read more

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Is sickle cell dominant or recessive in its inheritance?

Is sickle cell dominant or recessive in its inheritance?

Recessive: Sickle cell is autosomal recessive which means both parents must have a copy of the defective allele (one or both can be carriers but exhibit no symptoms). ...Read more

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Can a pedigree trace autosomal recessive or autosomal dominant diseases?

Family tree: If you have enough information, a well filled out family tree can sometimes reveal patterns of inheritance. This includes autosomal recessive /dominant or x linked forms of inheritance. ...Read more

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Amanda Xi Dr. Xi
8 doctors agreed:
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How does the autosomal dominant pattern of inheritance work?

Amanda Xi Dr. Xi
8 doctors agreed:
How does the autosomal dominant pattern of inheritance work?

See full answer: Every person has 2 copies of every gene -- one from the mother and one from the father. When a disease is caused by a mutation in a gene and it follows an autosomal dominant pattern of inheritance, this means that only 1 copy of the mutated gene needs to be inherited to have the disease. ...Read more

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Is obesity a dominant or recessive trait?

Is obesity a dominant or recessive trait?

Explanation : Neither. Obesity do not have even cleat trait. Too many factors play roles: lifestyle and diet, physical activity are the most important. ...Read more

Dr. Alvin Lin Dr. Lin
2 doctors agreed:
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What is recessive vs dominant heredity?

Dr. Alvin Lin Dr. Lin
2 doctors agreed:
What is recessive vs dominant heredity?

Mendellian genetics: In mendellian genetics, you inherit half your genes from your mom & half from your dad. Each of these genes can then be either recessive or dominant. Dominant genes only require one copy from either mom or dad to make trait apparent. Recessive genes require one copy from both mom & dad to make trait apparent. Carrier is person w/one copy of recessive gene (from either mom or dad). ...Read more

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What are dominant genetic conditions?

What are dominant genetic conditions?

See below: With a dominant gene trait, the child only needs to receive one copy of the abnormal gene. So, they have a 50% chance of getting the gene. With a recessive gene, the child needs 2 copies of the gene. So, they have a 25% chance of having both genes. ...Read more

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Angelman Syndrome and whether the gene is recessive or dominant?

Angelman Syndrome and whether the gene is recessive or dominant?

Angelman syndrome: The answer is neither- most cases are not inherited at all. http://ghr.nlm.nih.gov/condition/angelman-syndrome ...Read more

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Do identical twins both develop autosomal dominant disorders?

Do identical twins both develop autosomal dominant disorders?

Yes: They occur when one fertilized egg & sperm split in to two pregnancies, so will share all features, good and bad. ...Read more

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What are the differences between autosomal dominant and autosomal recessive polycystic kidney disease?

What are the differences between autosomal dominant and autosomal recessive polycystic kidney disease?

Differences: Main differences are---ADPKD shows itself in adults and 1/3 stays silent, 1/3 cause complications like hypertension etc, and 1/3 progress to end stage renal disease. ARPKD --- on the other hand manifests itself in pediatric population, in fact soon after birth, almost always involves kidneys bilaterally and requires dialysis for survival. Good news-- ADPKD is dominant therefore never skips generat ...Read more

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Are lazy eyes inherited dominant or recessive?

Depends: The technical term for "lazy eyes" is strabismus. There are many different types of strabismus and the association with inheritance depends upon the particular classification. ...Read more

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Cystic fibrosis disease is carried by a recessive allele on which gene?

Cystic fibrosis disease is carried by a recessive allele on which gene?

CFTR: Cystic fibrosis is caused by a mutation of the cftr gene, or cystic fibrosis transmembrane regulator, on chromosome 7. Cftr works as a chloride ion channel which helps to regulate chloride and sodium movement in your lungs and sweat ducts. ...Read more

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Is the dominant side of your brain determined by your genetics?

Is the dominant side of your brain determined by your genetics?

In part, yes: But the vast majority of folks have the left side of brain as dominant, even in the majority of left handers. ...Read more

Gene (Definition)

A hereditary unit consisting of a sequence of dna that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their ...Read more