DNA has to be transcribed into RNA because not only can dna not leave the nuclear for translation at the ribosomes
Also for translation to occur the codons on the mRNA match up with the codons on the tRNA which is connected to the amino acids forming the chain
As you move toward the core pressure increases as there is more grabs too also pressure being placed on it and there is more weight of the other layers weighing down on it
I hope you have a amazing week to and only good things happen to you!!!!