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Tumour suppressor genes (TSGs) are genes whose protein products restrain inappropriate cell growth and division. A mutation results in a changed amino acid sequence, which alters the tertiary structure of...

During exercise, there is a higher need for the working muscle to have oxygen for respiration in order to generate energy to carry out its function. Therefore, there is more blood flow required to the mus...

Interphase and Mitosis make up the cell cycle.Interphase includes 3 phases- G1- Cell growth phase and this is where cell multiply their organelles and their cytoplasms expand;S phase- DNA synthesis phase ...

Bacteria:Contain naked DNAHave a cell wall, membrane and organelles - RibosomesAre cellsLarger than virusesCan survive without living ho...

Adults are exposed to the toxin as a child, which initiates an immune response. B lymphocytes are produced and release antibodies which bind to the specific toxin and destroy it as part of the humoural im...