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The karyotype of a person with Down syndrome differs from a normal karyotype because it contains a three chromosomes in the 21st slot, where there should only be a pair of two. That is why this is called Trisomy 21.
What else can I help you with?
Is klinefelter's syndrome a abnormality?
Klinefelter's syndrome is not considered to be a variation of normal, so by definition it is abnormal.
What are the genotypes of two parents that pass on the klinefelter's syndrome?
The parents have normal genotypes, because Klinefelter's syndrome is not inherited.
Does the Y chromosome in Klinefelters syndrome look like the X chromosome?
No. People with Klinefelter's syndrome have a normal Y chromosome and 2 normal X chromosomes.
How many chromosomes are in klinefelter's syndrome?
Individuals with Klinefelter's syndrome have an extra X chromosome, resulting in a total of 47 chromosomes, with the usual sex chromosomes XX for females and XY for males being XXY in individuals with Klinefelter's syndrome.
Is Klinefelter's syndrome the same as Down syndrome?
Klinefelter = XXY Turner's = X Klinefelter syndrome is the extra X and can lead to somewhat of a female secondary sexual characteristic in men. Turner's is the single X some women receive and can cause short stature and lack of secondary sexual characteristics.
Is the karyotype of a person with schizophrenia normal or abnormal?
The majority of people with schizophrenia have normal karyotypes. If the karyotype is abnormal, it will be a coincidence and not the cause of the schizophrenia. For example, you can have Turner syndrome (1 X chromosome) and schizophrenia at the same time, but the Turner syndrome wouldn't have caused the schizophrenia.
What is the future look out for people with klinefelters syndrome?
Most of the Klinefelter Syndrome affected persons can lead a life which could be considered as normal. However, they might have certain problems related to sexual organs, (among others), and some, - but not all -, could be infertile. The reason for this is their extra chromosome. Females have XX chromosomes, Males have XY chromosomes, and Klinefelter syndrome affected males have XXY chromosomes. They often are prescribed testosterone therapy. More info could be found on related links.
Klinefelter's syndrome and XXY males are conditions that are caused by?
Normal humans have 46 chromosomes (23 from each parent). Males with Klinefelter's Syndrome have 47 chromosomes and therefore have acquired an extra chromosome from a parent (hopefully a more knowledgeable contributor will say if it is from the male or female parent). A lot of studies have been done on the male calico cat. Back in the 1980's if one found a male calico cat that was NOT sterile, the cat was worth about 30K... a lot of money for that time period. I am not sure if similar hunts are currently underway.
Describe how the karyotype of an XXY human would differ from that of an XO human?
The karyotype of an XO human would be deficient one X chromosome, compared to that of a normal female, and it would result in a female. Normal human females only use one X chromosome, whereby one is inactivated, which is why an XO human is viable. An XXY human would have one extra X chromosome as compared to that of a normal male, and it would result in a male. Again, an X chromosome is inactivated, which is why an XXY human is viable. XO is referred to as Turner Syndrome. XXY is referred to as Klinefelter Syndrome.
What is the chromosomal abnormality in the 23th chromosome?
The 23rd pair of chromosomes in humans is the sex chromosomes, with females having two X chromosomes (XX) and males having one X and one Y chromosome (XY). Any abnormality in this pair can lead to conditions such as Turner syndrome (XO), Klinefelter syndrome (XXY), or Triple X syndrome (XXX).
Is klinefelter syndrome sex-linked?
Males with Klinefelters, often have lower testosterone & additional breast tissue, weaker muscle tone. Sexual function is usually normal but Low sperm count is also common.
Can males with Klinefelter's syndrome have babies?
No. The main effects of klinefelter syndrome are development of small testicles, small penises, lower testosterone levels and reduced fertility While that is true, there have been extreme advance in the use of fertility methods and while it isn't going to be 100% effective there is a higher chance than 0%. Additionally, penis size is irrelevant when talking about fertility. Most Klinefelter's patients have normal sizes. The problem is called hypogonadism; reduced use of the testicles. The above poster is correct that with genetic counseling, there are relatively good chances of finding viable spermatozoa. I believe that early diagnosis is essential to finding and freezing the spermatozoa, which increases chances by a good amount. Source - I have it.
