Disorders associated with changes in chromosome 15
By: Effie Moore Salem
Chromosomes are DNA molecules within cells and within these threadlike structures are coils of proteins that support the purpose and function of the cell. Each person has 46 chromosomes which amount to 23 pairs. Chromosomes are blueprints for growth and for the future activity of...
The genetics of blood type
By: Mark Standland
To the naked eye blood can look like a simple red fluid but in reality it is a complex living tissue containing a large number of cell types and proteins that differs from person to person. To be able to distinguish people who share the...
Methods researchers use to study DNA methylation
By: Alicia M Prater PhD
DNA methylation is a modification of DNA that occurs after synthesis of the strand. A methyl group (CH3) is added to one of the four nucleotides in DNA, specifically cytosine, by the enzyme DNA methyltransferase. This chemical change has been found to occur in CpG...
By: Dr. Bryan Katz
Trisomy 13, also called Patau syndrome, results from three copies of chromosome 13 instead of the normal two copies. This disorder is relatively infrequent, occurring in approximately 1 in 10,000 live births. As with other human chromosomal disorders, most cases of Trisomy 13 are...
Effects of trisomy 13: Patau syndrome
By: Gioia Degenaars
The word trisomy in genetics translates to meaning “an extra” chromosome. In the case of Trisomy 13 or Patau Syndrome, it is an extra chromosome at position 13 in a karyotype. This means the individual possess three copies of the chromosome instead of two...
By: Kaanthaka Abeygunasekara
Effects of Trisomy 13: Patau syndrome A syndrome is a collection of symptoms constituting a particular disorder. This disorder was ascertained by Dr. Klaus Patau in 1960. So the disease is named in his honor. (Patau syndrome) The underlying problem is that the patient has...
By: Amelia Emery
Trisomy 13, also known as Patau syndrome, is a genetic disorder in which an individual has three copies of chromosome 13 in all of the cells of their body. Two other variations of this disorder exist known as partial trisomy 13 and mosaic trisomy 13...
Effects of trisomy 13: Patau syndrome
By: Catherine Ebey
Patau syndrome is a rare genetic disorder that occurs when a child is born with three copies of chromosome 13 in every cell (trisomy 13). Trisomy 13 occurs in about 1 out every 10,000 newborns. Most babies with this abnormality do not survive to...
By: Victor Mikulin
Trisomy 11 is one of a variety of trisomy disorders that are genetic in their origin. A trisomy is when a chromosomal abnormality occurs at a specific location in the double helix of DNA. In the case of trisomy 11, that chromosomal abnormality occurs at...
By: Amelia Emery
The genetic disorder known as trisomy 11 occurs when an extra copy of chromosome 11 exists in every cell of an individual’s body. Chromosome 11 is an important part of the human genome and consists of 1,500 genes that represent 4-4.5% of...

 

1 34 35 36 37 38 41