Then why don’t you set us straight?
“70,000 gene pairs in the average chromosome and 12 different protein”
It was hard to even know what the author was trying to say.
But I think I figured it out.
There are about 35,000 genes in the genome. There are two chromosomes each with the 35K genes. That’s 70,000 genes that are paired in the entire genome, not on one chromosome.
It’s not 70,000 gene pairs, but would be 35K.
As far as “12 different proteins” I think he means proteins that are involved in forming DNA polymerase, the enzyme complex that replicates, or copies, the DNA.
But there are lot of other proteins involved.