protein synthesis
Subject:
Biology [1]
Tags:
Biology [2]
Gene expression [4]
Genetics [6]
RNA [7]
Translation [8]
Messenger RNA [9]
Transfer RNA [10]
Genetic code [11]
Ribosome [12]
Gene [13]
health [14]
14.1 Structure of ribonucleic acid The genetic code Sequence of nucleotides in DNA forms a code that determines the sequence of amino acids in the proteins. In eukaryotes the DNA code is largely confined to the nucleus. The synthesis of proteins takes place in the cytoplasm. Sections of the DNA code are transcribed onto a single-stranded molecule called ribonucleic acid RNA. There are a number of types of RNA. The one that transfers the DNA code from the nucleus to the cytoplasm acts as a type of messenger and is called messenger RNA (mRNA). This mRNA is small enough to leave the nucleus through the nuclear pores and to enter the cytoplasm, where the code that it contains is used to determine the sequence of amino acids in the proteins which are synthesised there.