5-Fluorouracil

Products 5-Fluorouracil is commercially available as an ointment (Efudix), as a topical solution in combination with salicylic acid (Verrumal), and in preparations for parenteral administration. This article refers to topical application. In 2011, 5-fluorouracil at the lower concentration of 0.5% was approved in many countries with Actikerall. Structure and properties 5-Fluorouracil (C4H3FN2O2, Mr = 130.08 … 5-Fluorouracil

Cytosine: Function & Diseases

Cytosine is a nucleic base that is a building block of DNA and RNA. It and three other nucleic bases make up the genetic code of every living thing. What is cytosine? The exact chemical name of cytosine is 4-amino-1H-pyrimidin-2-one because the amino group of the nucleic base is located at the fourth standard position … Cytosine: Function & Diseases

Deoxythymidine: Function & Diseases

Deoxythymidine is the more common name of 1-(2-deoxy-β-D-ribofuranosyl)-5-methyluracil. The name thymidine is also in common use. Deoxythymidine is an important component of DNA (deoxyribonucleic acid). What is deoxythymidine? Deoxythymidine is a nucleoside with the molecular formula C10H14N2O5. A nucleoside is a molecule consisting of what is called a nucleobase and a monosaccharide, pentose. Deoxythymidine was … Deoxythymidine: Function & Diseases

Endonuclease: Function & Diseases

Endonucleases are enzymes that degrade DNA and RNA without completely cleaving them. The group of endonucleases includes several enzymes, each of which is substrate- and action-specific. What is an endonuclease? Endonucleases are various enzymes that are not unique to humans but are found in all living things. They belong to the superordinate group of nucleases. … Endonuclease: Function & Diseases

Chromosomes

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? | 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? | 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