Chromosomes are carrying your genes
Not the kind you wear
But the ones that let you see
Genes determine who you are
Like the color of your eyes
Chromosomes and you
Either xx or xy

Carrying instructions that build your bones
You have 46 of those chromosomes

 Two x's are a girl x y are a guy
They contain DNA and they look like a bow tie
Inside the nucleus work is taking place
Look into the mirror and see what=s being made

Carrying instructions that build your bones
You have 46 of those chromosomes

 23 from your ma 23 from your pa
Together to form you making you short or tall
Chromosomes combine making something new
Chromosomes design a blueprint just for you