Top
20
Doctor insights on: Hypertrichosis Chromosome

Share
1

1
What chromosome is congenital melanocytic nevi syndrome?

What chromosome is congenital melanocytic nevi syndrome?

No specific link: The congenital melanocytic nevus syndrome is considered sporadic in its occurrence.A few available studies of biopsy material have found abnormalities on the 1st, 12th or 19 th chromosome but no consistent pattern is reported.See the recent article : www.Ncbi.Nlm.Nih.Gov/pmc/articles/pmc2994429. ...Read more

2

2
Is leukemia an autosomal dominant or autosomal recessive condition?

Is leukemia an autosomal dominant or autosomal recessive condition?

Neither: Leukemia has a variety of factors of influence;however,it is not inherited as a simple autosomal recessive or dominant trait. ...Read more

3

3
What chromosomes cause the genetic disorder achondroplasia?

What chromosomes cause the genetic disorder achondroplasia?

FGFR3 gene: Achondroplasia is a mutation in the fibroblast growth factor receptor 3, which is an inhibitor that regulates bone growth. In cases of achondroplasia, the fgfr3 gene is too aggressive, negatively impacting bone growth. ...Read more

5

5
Which chromosome causes cml?

Which chromosome causes cml?

Chromosomes 9 and 22: ...are abnormally spliced together in most cases of CML forming a characteristic translocation referred to as the Philadelphia chromosome. At the molecular level this causes a fusion of two genes (BCR and Abl). ...Read more

6

6
Is marfan's syndrome a genetic mutation?

Is marfan's syndrome a genetic mutation?

Yes: Yes it is a mutation in the fbn1 gene on chromosome 15. This gene is responsible for providing the instructions for making a protien called fibrillin which becomes part of microfibrils. Microfibrils are important for providing the strength and flexibility of connective tissue. Connective tissue provides strength and flexibility to bones, ligaments, muscles, blood vessels and heart values. ...Read more

See 1 more doctor answer
7

7
How is the genetic abnormality patau syndrome inherited?

How is the genetic abnormality patau syndrome inherited?

Non-disjunction.: The majority of cases of the lethal patau or trisomy 13 syndrome are caused by nondisjunction (47, +13) related to advanced maternal age. Robertsonian translocations of either parent can increase the risk for that couple, although most affected embryos die in utero. ...Read more

See 1 more doctor answer
8

8
Is williams syndrome a gene or chromosomal mutation ?

Is williams syndrome a gene or chromosomal mutation ?

Microdeletion: Williams syndrome is caused by small loss (deletion) of genetic material from long arm of chromosome number 7. ...Read more

See 2 more doctor answers
9

9
What chromosomal mutation results in alagille syndrome?

What chromosomal mutation results in alagille syndrome?

ALGS: Alagille syndrome (algs) is a complex multisystem disorder involving primarily the liver, heart, eyes, face, and skeleton. The two genes in which mutations are known to cause algs are jag1 and notch2. Mutations in jag1 are known to cause about 94%-96% of cases of algs. Mutations in notch2 are known to cause algs in 1%-2% of individuals. ...Read more

See 1 more doctor answer
10

10
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

See 1 more doctor answer
11

11
Is cystic fibrosis autosomal dominant in genetics?

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

See 1 more doctor answer
12

12
Is klinefelter's syndrome dominent or recessive?

Is klinefelter's syndrome dominent or recessive?

Error in formation: Humans have 23 pairs of chromosomes. During the formation of the egg, each pair splits and one of each travels to the egg. At conception, the sperm brings 22 + an X or Y & the new embryo now has 23 pairs (two of each). In Kleinfelter, the egg retains 2 X chromosomes instead of 1 & the sperm brings a Y.The fetus then has 23 pairs + the extra X. This is an error in formation, not an inherited trait ...Read more

See 3 more doctor answers
13

13
Is klinefelter's syndrome a somatic or genetic mutation?

More than one x: It is a genetic anomaly in which a phenotypic male has more than one x chromosome, in addition to the y chromosome. The disorder is associated with poor testicular development and infertility, obesity. ...Read more

14

14
Is edward's syndrome autosomal or sex-linked? Dominant or recessive?

Is edward's syndrome autosomal or sex-linked? Dominant or recessive?

None of the above: Edward syndrome is brought on by an abnormality of chromosome numbers, specifically an extra 18. The abnormal egg with a single chromosome 1-17 & 19-22 + x has a pair of 18's. When the sperm brings a single chromosome 1-22 + x or y then the embryo ends up with 47 chromosomes rather than 46 in every cell.(3-18's) the excess distorts the organ building information & defects arise. ...Read more

See 1 more doctor answer
15

15
Is turner's syndrome dominant or recessive?

Neither: It is due to lack of one in the pair of X chromosomes. ...Read more

See 2 more doctor answers
17

17
On which chromosome is the genetic disorder myofibrillar myopathy?

On which chromosome is the genetic disorder myofibrillar myopathy?

80% not identified: Here is a good link to get more information about this condition. http://www.ncbi.nlm.nih.gov/books/nbk1499/ they have identified a number of genes that contribute to that condition. If the gene causing mutation has been established then genetic counseling may help with prenatal testing. We have established some of the genes involved but only 20% of cases have a genetic basis identified. ...Read more

18

18
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

See 1 more doctor answer
19

19
Is trisomy 13 dominant or recessive?

Is trisomy 13 dominant or recessive?

Neither: Any defect like trisomy 13, that involves acquiring an extra chromosome, has nothing to do with dominant or recessive genes. It occurs when usually the egg carries 2 rather than 1 of the 13 chromosomes. Fertilization by a normal sperm with one of every chromosome creates an embryo with three # 13's.If the embryo survives pregnancy it emerges as a trisomy 13 infant with all the problems they have. ...Read more

20

20
Is XYY syndrome- Sex-linked-yes or no; particular chromosome; recessive or dominant?

Klinefelter Syndrome: Hi, Klinefelter Syndrome, or XYY syndrome is a syndrome where males have an extra Y chromosome, which makes them 47 XYY rather than 46 XY. It is not a sex-linked, autosomal dominant, nor autosomal recessive disorder. The inclusion of the extra Y chromosome is thought to be a random event, even in cases of 47 XYY mosaicism. Follow this link: http://ghr.nlm.nih.gov/condition/47xyy-syndrome ...Read more