Carrier of genetic information in cells.
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A component of DNA, it contains one less hydroxyl group than β-D-ribose.
Eukaryotic cells with nuclei measuring only a few micrometres may contain nearly 2 metres of DNA, coiled multiple times.
It is also used as a food additive, limescale and rust remover.
A heterocyclic aromatic organic compound, its derivatives include guanine and adenine.
A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.
A polynucleotid made up of phosphoric acid, ribose, and nucleobases (cytosine, uracil, adenine and guanine).
Widespread heterotrophic unicellular organisms with constantly changing shapes
Bacteria are unicellular organisms that have no nuclei and are a few micrometres in length.
Genome editing is a type of genetic engineering which results in changes in the genome of an organism. This animation presents one of the best-known genome...
Mitosis is the process by which a eukaryotic cell divides into two cells and the number of chromosomes remains unchanged.
A compound ion formed when a phosphoric acid molecule releases a proton.
This animation demonstrates the development of the human embryo and foetus.
Tardigrades can survive in extreme environments, they can even stay alive in outer space.
There are two basic cell types: prokaryotic and eukaryotic cells.
Eukaryotic cells contain a number of organelles.
Bacteria occur in a wide range of shapes, including spheres, rods and spirals.
Fibroin is a fibrillar protein excreted by silkworms.
Polymerised ethylene is known as polyethylene, a type of plastic.
Viruses consist of protein and DNA or RNA; they reprogram infected cells to produce more viruses.