Which of the following is a definition of a codon?
a. a complimentary pair of hydrogen bonded bases in RNA
b. a sequence of three bases on RNA that directs incorporation of a specific amino acid into a protein
c. a complex between DNA and RNA
d. RNA found in the ribosome, the site in cells where synthesis of proteins takes place
Question 2
Which of the following is a definition of messenger RNA (mRNA)?
a. RNA found in the ribosome, the site in cells where synthesis of proteins takes place
b. RNA which carries a specific amino acid to the site of protein synthesis
c. RNA which has coded genetic information
d. RNA which signals cell death
This cat has accepted this pair of guinea pigs.
A pair of striped hyenas fighting at the Colchester Zoo
Energy Level Diagram of Hydrogen
Water, Hydrogen, Methane
A sampling of the modified and unusual bases found in tRNAs
Stripe pattern of pair-rule gene expression in a Drosophila embryo