DNA
A way that mutations increase the likelihood that a species will survive in a changing environment.
What is mutations are a source of variation in a gene
Why are research organisms useful for studying and identifying diseases?
What are all organisms are made out of the same four nitrogen bases.
Sequence of three bases on a mRNA molecule
What is a codon?
A disease that results in a change in the shape of hemoglobin in red blood cells due to a missense mutation.
What is sickle cell anemia?