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.
The cell division ( called traverse binary fission or simply binary fission) occurs in several stages: 1  DNA replication and separation; 2  Partition between two Dna molecules; 3  Invagination and septum formation of cell wall;  Formation of cell 1  wall; Finally cell separation.