Inside your body you have 100 trillion cells. There are different kinds - skin cells, blood cells, brain cells etc. Cells can die and your body makes new ones.
INSIDE EACH CELL there is a nuclear.
INSIDE the nucleus, there are a person’s chromosomes.
A person has 46 chromosomes (23 pairs).
INSIDE EACH chromosome is that person’s DNA.
DNA is shaped in a double-helix (two spirals together). This is the TWO SETS of DNA.
A gene is MADE OF DNA.
You get your genes from your parents (you inherit them).
They decide the information for your body - hair colour, skin colour, height, disposition to medical conditions etc.
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