| UAG, UGA, and UAA are ____ codons. |
amino acid |
| Mutations create variations in a population's gene ____. |
DNA |
| Biological information flows from ____ to RNA to protein. |
gene |
| During replication, ____ separates the DNA strands. |
helicase |
| Amino acids are carried by ____ to corresponding codons. |
pool |
| A ____ is a segment of DNA that codes for a trait. |
pyrimidine |
| The primary structure of a protein is its ____ sequence. |
stop |
| Cytosine and thymine are ____ (one ring) nucleotide bases. |
tRNA |
