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Mitochondria are advantageous as they allow the cell to respire aerobically, without them they can only respire anaerobically. As a result of this aerobic respiration due to the mitochondria's presence th...

DNA replication occurs in the nucleus of the cell. DNA is first unwound to expose the nucleotides. This is is catalysed by DNA helicase which catalsyes the breakage of the hydrogen bonds between complimen...

Vertical transmission occurs during asexual reproduction. During the cell cycle, a bacterium will replicate its DNA (found in the form of a circular plasmid) which will contain the gene for antibiotic res...

The proportion of the population with genotype Bb can be calculated using the two equations of the Hardy-Weinberg principle. These equations are: p + q = 1  where: p = frequency of the do...

Enzymes are biological catalysts. This means they spead up chemical reactions in the body. To understand why they might stop working, you must first look at the structure. Enzymes are proteins made up of ...