A tRNA is made of 3 bases together that code for an amino acid. these 3 bases are complementary to an mRNA sequence. What is another name for this 3 base code ? A. Codon
B. Anticodon
C. Exon
D. intron

According to the cladogram, which organisms have roundworms as a common ancestor?

How can you tell the difference between rough er from smooth er?

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide