No. People with Klinefelter's syndrome have a normal Y chromosome and 2 normal X chromosomes.
like speghetti like speghetti
Science allows us to actually look at our chromosomes. If we see a third copy of chromosome number 21, we know that a person has down syndrome.
There is no "syndrome." That is what a fetus looks like.
Crouzon Syndrome is caused by mutations in the FGFR2 gene, which is located on chromosome 10. These mutations disrupt the function of the FGFR2 protein, leading to abnormal development of the skull and face.
The chromosome's role is to tell the stem cells what to make and how to look like. For example, if you have brown eyes, and the genetic code is 01001, then that is what the chromosome tells the cell to look like and function like.
The diagnosis is confirmed with a blood test to look at the person's chromosomes so it can be seen if the second X chromosome is missing. This test is done after a doctor notices the person has characteristics associated with Turner syndrome.
then you know what your looking at and for
The trisomy 21 in a karyotype would look like extra chromosome 21 I ^^
A karyotype tells you if you have the normal ammont of chromosomes (46 for humans), it can also tell you if you have more or less and if this is the case what it is that you have. The most common syndrome would be Down Syndrome, or trisomy 21. Down Syndrome is also called trisomy 21 because if you look at a karyotype from someone that has this syndrome then they have three coppies of the 21st chromosome.
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.
Most children born with Edwards' syndrome appear weak and fragile, and they are often underweight
phsychiatrist A Downs Syndrome diagnosis is confirmed with a genetic test, which looks for the extra chromosome (Downs chromosome) that is present. Autistic diagnostic tests such as the CARS, CHAT, ADOS, as well as the Bayleys Scale and Monte Griffiths assesment can be carried out by a psychiatrist (because they rely on observation and parental imput in some parts) but I would recommend seeing a developmental paediatrician because they primarily deal with childrens developmental issues, plus they can along with occupational therapists look for other indicators of autism plus look at whether your child has another developmental problem other than Downs syndrome or autism. They may also test your child's blood for things like lead levels (to rule out lead poisoning) haemogobin levels, and look at if your child may have Fragile X syndrome, or urine testing for metabolic problems or do an EEG to look for indications your child may have had seizures or something else that may have led to regression in your child's development, plus they may get several different tests like hearing tests to rule out deafness or something else that it could be so I would personally recommend a developmental paediatrician because they may take a more wholistic approach and are experts in the field. I hope this has helped you know what to look for. Good luck.