How does trisomy 21 occur? Trisomy 21 is a disease caused by the triple presence of the 21st chromosome. In healthy cells the chromosomes are duplicated, so that the human being has a total of 46 chromosomes. A patient with trisomy 21 has 47 chromosomes and suffers from Down syndrome. The triple presence of the … How does trisomy 21 occur? | Meiosis
What is Klinefelter syndrome? The Klinefelter syndrome occurs in about every 750th man. It is one of the most common congenital chromosomal diseases in which affected men have one sex chromosome too many. They usually have the karyotype 47XXY instead of the usual 46XY. The double X in the chromosome set leads to a testosterone … Klinefelter syndrome
How to treat Klinefelter syndrome Klinefelter’s syndrome cannot be treated from its cause. The disorder during meiosis can therefore not be reversed. However, since most of the symptoms of Klinefelter’s syndrome are caused by low testosterone levels, the therapy consists in supplying testosterone from the outside. This is also known as testosterone substitution. Depending on … How to treat Klinefelter syndrome | Klinefelter syndrome
Definition – what is a trisomy 13 in the unborn child? Trisomy 13, also called Pätau syndrome, is a change in the chromosomes in which chromosome 13 is present three times instead of twice. The disease is accompanied by malformations of several internal organs and can in many cases be detected before birth. Children born … Trisomy 13 in the unborn child
Associated symptoms As the neck wrinkle measurement is usually carried out in the 10th to 14th week of pregnancy, there are usually no symptoms or signs that the pregnant woman might notice before the diagnosis is made. If trisomy 13 remains undetected, symptoms only appear after birth due to the maldevelopment of the internal organs, … Associated symptoms | Trisomy 13 in the unborn child
What is Angelman syndrome? Angelman syndrome is a genetic disorder that causes mental and physical disability. Characteristic for the disease are above all the speech development disorder and excessive cheerfulness of the affected persons. Angelman syndrome occurs in boys and girls and affects about 1-9 per 100,000 births worldwide. It has similarities to Prader-Willi syndrome. … Angelman Syndrome
Definition – what is the Turner syndrome? Turner syndrome, also known as Monosomy X and Ullrich-Turner syndrome, is a genetic disorder that affects only girls. It was named after its discoverers, the German pediatrician Otto Ullrich and the American endocrinologist Henry H. Turner. Characteristic signs of the Turner syndrome are dwarfism and infertility. Turner syndrome … Turner Syndrome
I recognize a Turner syndrome by these symptoms There are a number of possible symptoms that can occur in Turner syndrome. However, these do not all occur simultaneously. Some symptoms can also be age-related. Already at birth, newborns are conspicuous by lymphedema of the backs of the hands and feet. The dwarfism is also noticed … I recognize a Turner syndrome by these symptoms | Turner Syndrome
Duration Prognosis Since the Turner syndrome is not curable, girls and women affected by the disease are accompanied by the disease throughout their lives. A regular medical examination is important, as there is an increased risk of various diseases. These include: High blood pressure, diabetes mellitus, overweight, osteoporosis, diseases of the thyroid gland and diseases … Duration Prognosis | Turner Syndrome
Introduction Most of the body’s tissues renew themselves continuously. This renewal is achieved by a constant formation of new cells. This new formation is achieved by a division of cells. This cell division requires that the cells are capable of dividing. The cells capable of division in adults are called adult stem cells. The actual … Cell Nuclear Division
Why does cell division occur? Nuclear division is necessary to create cells for tissues that are constantly renewing themselves. The body’s ability to function and heal is based on the fact that dead cells can be replaced by new ones. However, there are differences in the ability to divide between the different tissues.Some parts of … Why does cell division occur? | Cell Nuclear Division
How does a tumor develop? The word tumor literally means swelling and can be triggered by various processes. The most common cause of swelling is inflammation, which causes swelling due to increased water retention. A tumor caused by unchecked proliferation of cells is also called neoplasia. There are many different forms of neoplasia, which arise … How does a tumor develop? | Cell Nuclear Division
