Doctor insights on:
Klinfelters Syndrome Is Sex Linked Or Not
None of the above: Down syndrome happens when an extra 21 chromosome is present in all the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg; the male 21 joins the female pair & creates an embryo with 3 number 21's. It has nothing to do with traits or mutations in the gene code. ...Read moreSee 1 more doctor answer
No: Down syndrome is an abnormality of chromosome numbers, not a mutation on a sex chromosome. During conception only one of chromosome of each pair is given by both parents to the fertile egg.If a parent adds their 2 # 21 chm to the other parents # 21, 3 end up in the egg ; the excess 21 causes the all the problems.Rare forms are causes by a extra piece of a 21, but that's another issue. ...Read moreSee 1 more doctor answer
No: This is a classic homework question and an important idea. If a child does not have a good copy of ubd3a from mom, the child gets angelman's. If a child does not have a good copy of ubd3a from dad, the child gets prader-willi. This is imprinting and is a subtle concept, unlike the easier idea of sex-linked inheritance. ...Read more
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
Extra Y chromosome: About one man in 1000 has an extra Y chromosome and it's likely to be discovered only if there's some investigation because of some problem such as autism. This has given rise to the myth that autism, criminal behavior and so forth are more common in such men. They average taller and tend to get worse acne. The "criminal" claims haven't held up to real science. ...Read more
Recessive, Chms 7: About 70 % of CF cases are due to a kid inheriting a delta 508 mutation gene from both parents.There are other mutations that can pair up with a 508 and still cause CF, which helps explain some of the variations in the disease. It is not sex linked or dominant. Carrier detection is available. ...Read more
Klinefelters: Most of the time these men have difficulty having children to do low sperm counts. Some klinefelter men are mosaics meaning only a percentage of their cells are abnormal with an extra x chromosome. These men may have an easier time. One should consult a geneticist before considering children as they are at high risk of having babies with sex-chromosome abnormalities. ...Read more
No: XYY syndrome is neither autosomal dominant or recessive. See a geneticist about inheritance patterns. It is often causes by chromosome nondysjunction (lack of separation). There is not a particular chromosome but the sex chromosomes are called X and Y. Females typically are XX and Males XY. XYY is causes by a Y chromosome separation issue. XYY individuals are usually normal males ...Read more
Equal opportunity Dx: Turner syndrome( xo sex chromasomes) has been reported across all races, cultures and socio-economic groups.After conception, many are lost early in pregnancy. The DX may be suspected prenatally thru screening or evident by physical features seen at birth. Many go unrecognized until adolescence when short stature & lack of development is evident.With rx they can live quite well. ...Read moreSee 1 more doctor answer
Male.: Klinefelter's syndrome is a male xx/y individual. In otherwords, an y-chromosomal male with two female chromosomes. Other than having after puberty very high estrogen levels and lower than normal testosterone, they actually have the highest incidence of connective tissue diseases in the lupus family, but the percentage still is not high! ...Read more
I'd always known about color blindness as a sex linked inheritable disorder. But i read on wikipedia that it can also be acquired. How?
Is their a gene specifically associated with the hypermobile form of ehleres- danlos syndrome? And is it one that is able to be tested ?
See geneticist!: Type 3: hypermobility form - ehlers-danlos is caused by an autosomal dominant or recessive mechanism. Mutations in either of two separate genes (which are also involved in vascular eds and tenascin-x deficiency eds, respectively) may lead to this variant. Tnxb sequencing or quantitative serum tenascin-x analysis or testing of eds-associated genes, especially col3a1can be done. ...Read moreSee 2 more doctor answers
Color blindness is a sex linked heritable disorder but i read on wikipedia that it can also be acquired. How?
Is it safe to date someone with chronic fatigue syndrome, since that is usually caused by either known or unknown infectious diseases?
Chronic fatigue: The cause or causes (there may be more than one) of chronic fatigue syndrome are unknown. An infection is possible but not proved. If it's an infection, it is not easily transmitted. The frequency of CFS is no higher in friends, coworkers, or sex partners of people with CFS. There is no known risk from dating such persons, with or without sexual contact. ...Read more
- Talk to a doctor live online for free
- Is down syndrome sex linked or autosomal?
- Is down syndrome autosomal or sex linked?
- Is down syndrome a sex linked gene?
- Ask a doctor a question free online
- Sex linked disorder
- Is als is autosomal or sex linked?
- Cystic fibrosis sex linked
- Is lou gehrigs disease sex linked?
- Is downs syndrome sex linked?