Section 3 Definitions
RNA- ribonucleic acid, a natural polymer that is present in all living cells and that plays a role in protein
synthesis.
Gene expression- the manifestation of the genetic material of an organism in the from of specific traits.
Transcription- the process of forming a nucleic acid by using another molecule as a template.
Translation- the portion of protein synthesis that takes place at ribosomes and that uses the codons in
mRNA molecules to specify the sequence of amino acids in polypeptide chains.
Codon- In DNA and mRNA, a three-nucleotide sequence that encodes an amino acid or signifies a start
signal or a stop signal.
Section 3 Questions
1. What are the structural differences between RNA and DNA?
RNA has the sugar ribose, it is single stranded and has the base U jinstead of T.
DNA has the sugar deoxyribose, it is double stranded and has the Base T not U.
2. What is the role of a promoter?
The Promoter Artisan is one of the 16 role variants of the Keirsey Temperament Sorter,[1] a selfassessed personality questionnaire designed to help people better understand themselves.
3. How do codons and anticodons differ?
Codons are three bases on mRNA which go to the ribosome which translates into amino acids.
The
amino acids are attached to tRNA which has the anticodon on it which will bind to the codon on the
mRNA....