A karyotype can detect Turner syndrome by revealing a single X chromosome in females (45,X). This genetic condition is characterized by the absence of one X chromosome, which is visible on a karyotype analysis.
No, fragile x syndrome is not progressive
Fragile X is a result of a mutation in the FMR1 gene on the X chromosome.
The fragile X syndrome is a genetic disorder caused by mutation of the FMR1 gene on the X chromosome.
A biological male.
The sex of an individual can be determined by analyzing the karyotype for the presence of sex chromosomes. A karyotype with two X chromosomes is typically female (XX), while a karyotype with one X and one Y chromosome is typically male (XY). This distinction is made based on the presence or absence of the Y chromosome, which carries genes related to male development.
The question is not really clear. A karyotype is the overall complement of chromosomes isolated from a cell or organism (eukaryotic). When the karyotype of a normal healthy female is prepared for viewing by a cytogeneticist, there are 22 pairs of autosomal chromosomes present (ie two of chromosome 1, two of chromosome 2 etc...). There is one additional pair of sex chromosomes (two copies of X). A normal healthy human male also has 22 pairs of autosomes but the pair of sex chromosomes is not matched but instead there is one X chromosome and one Y chromosome (which is smaller than the X). So, if you look at a karyotype that has been laid out - if the two sex chromosomes are different sizes (X and Y) then the karyotype is from a male, if however they are the same size (X and X) then the karyotype is from a female.
The pair of sex chromosomes (X and Y) is not homologous in a normal male karyotype. Males have one X and one Y chromosome, while females have two X chromosomes.
yes
A karyotype will do that.
Early diagnosis and intensive intervention offer the best prognosis for individuals with fragile X syndrome. Adults with fragile X syndrome may benefit from vocational training and may need to live in a supervised setting. Life span is typically normal
Fragile x syndrome was first described in 1943 by J.Purdon Martin and Julia Bell whose family had eleven members with fragile x symptoms although they did not know the cause or have a name for the condition at this time. In 1969, Fragile x was first discovered under the microscope by a scientist called Herbert Lubs who discovered that one of the arms of the X chromosome in people with fragile x was constricted which gave it the appearance of being broken which is how the name 'fragile x' came about. In 1991 Verkerk identified the cause for transcriptional silencing of the gene Fmr-1, that encodes the protein FMRP.