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Both mitosis and meiosis use cytokinesis for the division of genetic informaton between cells, however mitosis creates identical copies known as daughter cells after just one round of cell division, where...
First of all a nucelotide is the monomer that makes up DNA. Millions of monomers are joined together to form the double helix of a DNA molecule. A nucleotide is made of a pentose sugar (in the case of DNA...
This is a common question. After learning about translation in A-level biology and the importance of converting DNA into proteins (the building block of organisms), students often assume that all<...
Ventilation is the process of moving air in and out of the lungs. This is brought about by pressure changes in the thoracic cavity. During inspiration, the diaphragm contracts causing it to flatten and mo...
The route of respiration for aquatic animals is via the gills. Oxygen absorption takes place as water, drawn in through the mouth is pushed out through the gill slits so flow is unidirectional (unlike mam...
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