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After the cell has carried out the process of DNA transcription, we are left with a transcribed mRNA fragment. This, similar to DNA, is a chain of 4 different bases - cytosine, guanine, adenine and uracil...
6 main steps (to be written in continuous prose):Leeching of nitrates causes algal bloomLight is absorbed by allege so no photosynthesis and plants dieCO2 builds up and no O2 is prod...
Stem cells are undifferentiated cells with the ability to differentiate to form specialised cells, such as erythrocytes and neurons, or to self-r...
The water potential of the blood is constantly monitored by specialised sensory neurones in the hypothalamus known as osmoreceptors. When these cells detect that the water potential of the blood is beginn...
Mitosis is used for growth, repair and replacement of tissue or in the case of asexual organisms - reproduction. It results in the formation of daughter cells which are genetically identical to the origin...
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