Fill in the Blank Questions 28.The use of information in DNA to produce proteins in the cytoplasm is ____________. 29.The genetic code is a ____________ code. 30.During protein synthesis, _______________ occurs in the nucleus as a copy of DNA is made into mRNA, and ______________ begins in the cytoplasm, when mRNA associates with a ribosome. 31.The three types of RNA involved in protein synthesis are mRNA, _______________, and ________________. 32.A type of DNA sequence that expands access to a gene to promote its expression is a(n) _______________. Â Â