Definition – What are chromosomes? The genetic material of a cell is stored in the form of DNA (deoxyribonucleic acid) and its bases (adenine, thymine, guanine and cytosine). In all eukaryotic cells (animals, plants, fungi) this is present in the cell nucleus in the form of chromosomes. A chromosome consists of a single, coherent DNA … Chromosomes
What functions do the chromosomes have? The chromosome, as the organizational unit of our genetic material, serves primarily to ensure an even distribution of the duplicated genetic material to the daughter cells during cell division. For this purpose, it is worthwhile to take a closer look at the mechanisms of cell division or the cell … What functions do the chromosomes have? | Chromosomes
What is the normal set of chromosomes in humans? Human cells have 22 sex-independent chromosome pairs (autosomes) and two sex chromosomes (gonosomes), so a total of 46 chromosomes make up one set of chromosomes. Autosomes are usually present in pairs. The chromosomes of a pair are similar in shape and sequence of the genes and … What is the normal set of chromosomes in humans? | Chromosomes
What is a chromosomal aberration? The structural chromosomal aberration basically corresponds to the definition of chromosomal mutation (see above). If the amount of genetic material remains the same and is only distributed differently, this is called a balanced aberration. This is often done by translocation, i.e. the transfer of a chromosome segment to another chromosome. … What is a chromosomal aberration? | Chromosomes
What is a chromosome analysis? Chromosomal analysis is a cytogenetic method used to detect numerical or structural chromosomal aberrations. Such an analysis would be used, for example, in cases of immediate suspicion of a chromosomal syndrome, i.e. malformations (dysmorphies) or mental retardation (retardation), but also in infertility, regular miscarriages (abortions) and also certain types of … What is a chromosome analysis? | Chromosomes
Breast cancer – What does BRCA mean? Breast cancer is a disease that is usually multifactorial in origin. This means that many internal and external circumstances contribute to the coincidence of breast cancer development. Angelina Jolie is one of the best known examples where a genetic mutation increases the risk of breast cancer. She had … Breast cancer – What does BRCA mean? | Genetic test – When is it useful?
Genetic test for colorectal cancer Colorectal cancer is also favored by many influenceable internal and external influences and genetic constellations. In colorectal cancer, diet, behavior and external circumstances play a much greater role than in breast cancer. Only about 5% of all colorectal cancers can be attributed to a genetic change.If close relatives of the … Genetic test for colorectal cancer | Genetic test – When is it useful?
Determine parentage and origin Parentage is the term used to describe the range of relatives whose genetic make-up one carries. Certain genes are located at different sites in the genome and can therefore be subject to different hereditary traits. If there is a defective gene in the family history, it is possible to calculate the … Determine parentage and origin | Genetic test – When is it useful?
Cystic Fibrosis Cystic fibrosis is one of the most well-known genetic diseases and is very feared because of its consequences. The cause is merely a diseased gene, which leads to a so-called “chloride channel” (CFTR channel) being shaped incorrectly. As a result, numerous cells and organs of the body produce highly viscous secretions, which can … Cystic Fibrosis | Genetic test – When is it useful?
Can rheumatism be detected in the genetic test? Genetic diagnostics is also playing an increasingly important role in rheumatology, as increasing genetic characteristics are being researched as causative factors in certain rheumatic diseases. One of the best known genetic characteristics, which are frequently associated with rheumatic diseases, is the “HLA B-27 gene”. It is involved … Can rheumatism be detected in the genetic test? | Genetic test – When is it useful?
Estimate the risk of thrombosis in a genetic test? The development of thrombosis is always multifactorial. Important influences on the development of thrombosis are low mobility, reduced blood flow in the veins, severe fluid deficiency and an increased tendency to thrombosis due to different blood compositions. Numerous components in the blood can be altered, which … Estimate the risk of thrombosis in a genetic test? | Genetic test – When is it useful?
Definition – What is a genetic test? Genetic tests play an increasingly important role in today’s medicine, as they can be used as diagnostic tools and for therapy planning of many diseases. In a genetic test, the genetic material of a person is analyzed to find out whether hereditary diseases or other genetic defects are … Genetic test – When is it useful?
