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Is Down syndrome a genetic disorder or a chromosome disorder?
Down syndrome is a chromosomal disorder. It is caused by having 1 extra chromosome (chromosome 21).
What is a congenital disorder caused by having an extra 21st chromosome which results in a flat face short stature and mental retardation?
The congenital disorder caused by having an extra 21st chromosome is called Down syndrome. It is characterized by physical features such as a flat face, short stature, and intellectual disabilities.
What type of disorder is klinefelters syndrome gene or chromosomal?
Chromosomal, because the person with Klinefelter's would have 47 chromosomes. A genetic disorder would be any disorder having to do with genes, but would not necessarily mean having an extra chromosome.
Why can females but not males be carriers of sex linked genetic disorders?
Females have two X chromosomes, allowing them to be carriers of sex-linked genetic disorders on one X chromosome while having a normal allele on the other X chromosome. Males have only one X chromosome and one Y chromosome, so any genetic disorder on their single X chromosome will manifest as the disorder rather than being masked.
What does it mean when someone has an extra chromosome?
If someone has an extra chromosome it means there was a genetic mutation that is abnormal in human development. It may result in problems with the person affecting them on a basic level, or may go fully unnoticed. A common disorder that can be caused by having an extra chromosome is Down's Syndrome.
Sex-linked disorders are caused by males having?
Sex-linked disorders are often caused by males having only one X chromosome, as they inherit a Y chromosome from their father. This means that any recessive allele on the X chromosome, which may be associated with a disorder, will be expressed in males since there is no corresponding allele on the Y chromosome to mask its effects. Consequently, conditions like hemophilia and color blindness are more commonly observed in males than in females. Females, having two X chromosomes, may be carriers without showing symptoms if they have one normal allele.
What disorder is caused by having few red blood cells?
Leukemia
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).
What is the most common chromosomal abnormality seen in live born babies what is the prevalence of this disorder what is the relationship between maternal age and the risk of having a baby with this?
Down Syndrome-the rest is on wikipedia
Is bipolar disorder found on the x-linked chromosome or y-linked?
bipolar disorder is found on the x-linked chromosome. Since female has 2 pairs of X chromosome. The effect of bad gene is compensated by other pair. Hence it carries to generations without being noticed. Also it is being liked to reproductive cycle of females. Where as male has one X and One Y chromosome. Hence a faulty X has no way to compensate. So if a male has bipolar disorder it is most likely to be of bipolar disorder of type 1 (most severe). Thought data shows males have less tendency of having bipolar disorder in percentage terms.
What is trisomy mutation?
A trisomy is when a person has 3 versions of a chromosome. 'Normal' humans will only have 2 of each chromosome. For example, having 3 versions of chromosome 21 is known as Trisomy 21 or Down Syndrome.
Is Klinefelter Syndrome sex-linked or autosomal?
Klinefelter Syndrome is sex-linked, because it is a genetic defect that results in a male having an extra X chromosome.
