Duration of mitosis Mitosis lasts on average about one hour, so that one can speak of rapid cell division. Compared to interphase, mitosis takes relatively little time. In addition, the interphase can last from several hours to several months or even years, depending on the cell type. The G1 – and the G0-phase in the … Duration of mitosis | Mitosis – Simply explained!
What is the difference between mitosis and meiosis? Both mitosis and meiosis are responsible for nuclear divisions, although both processes differ in their sequence and results. Mitosis is the process by which two identical daughter cells with a double (diploid) set of chromosomes are formed from a mother cell. In contrast to meiosis, only one … What is the difference between mitosis and meiosis? | Mitosis – Simply explained!
Definition Cells are the smallest, coherent units from which organs and tissues are built. Each cell is surrounded by a cell membrane, a barrier consisting of a special double layer of fat particles, the so-called lipid double layer. Lipid bilayers can be imagined as two fat films lying on top of each other, which cannot … Cell membrane
Structure of the cell membrane Cell membranes separate different areas from each other. To do this, they have to meet many different requirements: First of all, cell membranes are made up of a double layer of two fat films, which in turn are composed of individual fatty acids. The fatty acids consist of a water-soluble, … Structure of the cell membrane | Cell membrane
What are the components of the cell membrane? Basically, the cell membrane is composed of a phospholipid bilayer. Phospholipids are building blocks consisting of a water-loving, i.e. hydrophilic, head and a tail formed by 2 fatty acids. The part consisting of fatty acids is hydrophobic, which means that it repels water. In the bilayer of … What are the components of the cell membrane? | Cell membrane
Functions of the cell membrane As the complex structure of cell membranes already suggests, they have many different functions to fulfil, which can vary greatly depending on the type and localisation of the cell. On the one hand, membranes generally represent a barrier. A function that should not be underestimated. In our body, countless reactions … Functions of the cell membrane | Cell membrane
Differences to the cell membrane of bacteria – Penicillin The cell membrane of bacteria is hardly different from that of the human body. The big difference between the cells is the additional cell wall of the bacteria. The cell wall attaches itself outside the cell membrane and in this way stabilizes and protects the bacterium, … Differences to the cell membrane of bacteria – Penicillin | Cell membrane
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
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
