Chorus
Genetics is the study of what makes you you
Our genes control everything that our bodies do
Your chromosomes have bundles of DNA called alleles
They are instructions that tell your body the deal
Verse 1
Your dad has got brown eyes and your mom has got them too
So can you please explain to me why your eyes are blue
Genetically you are a mix of your mom and dad
The reason that your eyes are blue Is ‘cause of the genes that you have
Verse 2
Some genes are dominant and some others are recessive
To organize it all the Punnett square was invented
One parent’s genes go on the top and the other’s on the left
And in the middle’s where you put all of the possible matches
Bridge
Sometimes there are two genes that are dominant
When that occurs we say they have co-dominance
Like A and B when we talk about your blood
A and B are dominant and with the O there’s none
Verse 3
Brown eyes will dominate over blue, hazel, or green
If your ears are attached then you’ve got two recessive genes
If your hair is dark or light or if you go blind at night
Genes control so many things in all aspects of your life
