Replication in biology refers to the duplication of genetic information that the human body stores in the form of deoxyribonucleic acid (DNA). Certain enzymes copy the genes, preserving half of the original DNA strand. Biology therefore also refers to semiconservative replication. What is replication? Replication is a biological process that multiplies deoxyribonucleic acid (DNA). DNA … Replication: Function, Tasks, Role & Diseases
Definition Telomeres are part of every DNA. They are located at the ends of chromosomes and in no case code for genes. Unlike the rest of the chromosome, telomeres do not have double-stranded DNA. They are present as a single strand. In contrast to the rest of the DNA, they also do not exhibit a … Telomeres
Diseases of the telomeres Diseases of the telomeres can have serious consequences. In most cases, such subsequent effects are caused by damage to the DNA coding for proteins. Telomere disease is most often caused by a deficiency in the protein complexes (shelterins) that surround the telomeres, or in the enzyme telomerase. This promotes a disturbance … Diseases of the telomeres | Telomeres
What role do they play in the development of cancer? Telomeres can also play an essential role in the development of cancer. More often, however, the cause of cancer is a mutation within the DNA strand. However, shortening plays a role in the development of cancer as it does in aging. In the context of … What role do they play in the development of cancer? | Telomeres
Can the telomeres be influenced by nutrition? Among some doctors and researchers, it is considered proven that nutrition influences the telomeres. Several studies have already been carried out on this, but some of them are controversial. A healthy diet should increase the activity of telomerase, so that the shortening of the telomeres during cell division … Can the telomeres be influenced by nutrition? | Telomeres
Introduction The cell nucleus is the largest organelle of eukaryotic cells and is located in the cytoplasm, separated by a double membrane (nuclear envelope). As a carrier of genetic information, the cell nucleus contains the genetic information in the form of chromosomes (DNA strand) and thus plays an essential role in heredity. Most mammalian cells … Functions of the cell nucleus
In biology, the process of transcription involves the replication of a segment of a DNA strand into a messenger RNA strand (mRNA). The mRNA then contains the nucleic base sequence complementary to the fragment of DNA. Subsequent transcription occurs within the nucleus in all eukaryotes, including humans, whereas subsequent translation, the translation of the mRNA … Transcription: Function, Tasks, Role & Diseases