It is still not clear how exactly breast cancer or breast carcinoma develops. However, risk factors for breast cancer are known to contribute to cancer growth. Many of these breast cancer-promoting factors are recognizably related to female sex hormones. These include early onset of menstruation, childlessness or older age at first pregnancy (over 30 years), … Breast Cancer: Causes and Risk Factors
Like most living beings, humans are also subject to biorhythms, which represent a kind of internal clock and ensured survival in the course of evolution. A comparatively young scientific discipline, chronobiology, deals with these influences. What is the biorhythm? The term biorhythm identifies a biological rhythm or life cycle to which every living being is … Biorhythm: Function, Tasks, Role & Diseases
DNA is considered the Holy Grail of genetics and evolutionary biology alike. Without DNA as the carrier of hereditary information, complex life on this planet is unthinkable. What is DNA? DNA is the abbreviation for “deoxyribonucleic acid“. For biochemists, this designation already says the most important things about its structure, but in normal cases it … DNA: Structure, Function & Diseases
If you are young, you can hardly imagine what it is like to be old. Beyond 30, however, you suddenly become aware: the skin becomes flabbier, the body no longer forgives dietary and alcoholic sins so quickly. Aging may not be the most beautiful thing in the world, but it is the fairest, because it … Anti-Aging Medicine
A healthy, high-fiber diet with lots of vitamins and minerals, regular exercise and sufficient sleep are among the most important pillars of staying young. But a happy home life also has a life-prolonging effect. Married women, for example, live an average of 4.5 years longer, and for men the difference between being married and being … Anti-aging: What Can you do Yourself?
DNA Replication The goal of DNA replication is the amplification of existing DNA. During cell division, the DNA of the cell is exactly duplicated and then distributed to both daughter cells. The doubling of DNA takes place according to the so-called semi-conservative principle, which means that after the initial unravelling of the DNA, the original … DNA Replication | Deoxyribonucleic acid – DNA
DNA sequencing In DNA sequencing, biochemical methods are used to determine the sequence of nucleotides (DNA base molecule with sugar and phosphate) in a DNA molecule. The most widely used method is the Sanger chain termination method. Since DNA is composed of four different bases, four different approaches are made. Each approach contains the DNA … DNA sequencing | Deoxyribonucleic acid – DNA
Research goals Now that the human genome project has been completed, the researchers are trying to assign the individual genes to their significance for the human body. On the one hand, they are trying to draw conclusions about the development of disease and therapy, and on the other hand, by comparing human DNA with the … Research goals | Deoxyribonucleic acid – DNA
Heredity, genes, genetic fingerprint Definition DNA is the building instruction for the body of every living being (mammals, bacteria, fungi, etc.) It corresponds in its entirety to our genes and is responsible for the general characteristics of a living being, such as the number of legs and arms, as well as for individual characteristics such … Deoxyribonucleic acid – DNA
DNA bases There are 4 different bases in the DNA. These include the bases derived from pyrimidine with only one ring (cytosine and thymine) and the bases derived from purine with two rings (adenine and guanine). These bases are each linked to a sugar and a phosphate molecule and are then also called adenine nucleotide … DNA bases | Deoxyribonucleic acid – DNA
Synonym Microscopic Anatomy Definition – What is histology actually? The word histology is composed of the word “histos”, which means “tissue” in Greek and the Latin word “logos” for “doctrine”. In histology, i.e. “tissue science”, people use technical aids such as a light microscope in everyday life in order to recognize the structure of various … Histology
Frozen section analysis This is necessary if the surgeon needs information about the tissue removed during an operation in order to decide on the course of the procedure. For example, a small malignant tumor is removed from the kidney. Now a quick incision is required to see whether the tumor has been completely removed or … Frozen section analysis | Histology
