To protect vulnerable 16 and 17 year olds, the offences of 'abuse of a position of trust' prohibits sexual contact between adults and children under 18 in schools, colleges and residential care.
Chromosome abnormalities usually happen as a result of an error in cell division. Meiosis is the name used to describe the cell division that the egg and sperm undergo when they are developing. Normally, meiosis causes a halving of chromosome material, so that each parent gives 23 chromosomes to a pregnancy.
Mitosis is followed by cytokinesis, the splitting of the cytoplasm . In cell division, a parent cell splits, producing two daughter cells that are identical to the parent. Eukaryotic unicellular organisms like the protist Amoeba use cell division in the production of new individuals, propagating their species.