Before the synthesis of a protein begins, the corresponding RNA molecule is produced by RNA transcription. One strand of the DNA double helix is used as a template by the RNA polymerase to synthesize a messenger RNA (mRNA). This mRNA migrates from the nucleus to the cytoplasm. During this step, mRNA goes through different types of maturation including one called splicing when the non-coding sequences are eliminated. The coding mRNA sequence can be described as a unit of three nucleotides called a codon.
Channels: Scientific Animations Biochemistry Molecular Biology
Tags: Transcription mRNA RNA splicing RNA maturation
Uploaded by: sana ( Send Message ) on 15-05-2007.
Duration: 0m 56s