The single strand of mRNA leaves the nucleus through nuclear pores , and migrates into the cytoplasm .
The general RNA structure is very similar to the DNA structure , but in RNA the nucleotide uracil takes the place that thymine occupies in DNA .
The single strand of RNA leaves the nucleus through nuclear pores , and migrates into the cytoplasm .
The general RNA structure is very similar to the DNA structure , but in RNA the nucleotide uracil takes the place that thymine occupies in DNA .