Transcription
Transcription begins when RNA polymerase attaches to a promoter within DNA. This is called initiation. The DNA molecule splits open and allows RNA polymerase to add RNA nucleotides onto the DNA template.
Translation
The ribosome binds to mRNA at a specific area. The ribosome starts matching tRNA anticodon sequences to the mRNA codon sequence. Each time a new tRNA comes into theribosome, the amino acid that it was carrying gets added to the elongating polypeptide chain.
What does MRNA do ? Three major types of RNA are mRNA, or messenger RNA, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal RNA, that serve as structural components of protein-making structures known as ribosomes; and finally, tRNA, or transfer RNA, that ferry amino acids to the ribosome to be assembled.
What does MRNA do ? Three major types of RNA are mRNA, or messenger RNA, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal RNA, that serve as structural components of protein-making structures known as ribosomes; and finally, tRNA, or transfer RNA, that ferry amino acids to the ribosome to be assembled.