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If you’re first thought on reading this is panic. Don’t worry there are a clues to guide you to the answer. As with almost every problem the first step is to read the question carefully ...

Cell walls provide plant cells with protection and structure. Protection may be from adverse conditions or from biotic threats like fungi or bacteria. The structure of the plant is dependent on the pre...

The mitochondria is an organelle found in most cells of eukaryotic organisms, excluding some specific cells such as red blood cells. It has a double membrane and is variable in size (but usually betwee...

A mutation is a random change in the amount of DNA or sequence of DNA nucleotides within a cell. DNA is a double helix with two polynucl...

A gene is a section of DNA coding for a specific protein. This protein will perform a certain function within the organism. You interit two forms of each gene, one from each parent. These are ...