GENETICS Terms tRNA

 

- Info:

- Each tRNA - Transfer RNA has a binding site for a specific amino acid.

- Each tRNA has specific three-nucleotide sequence called anti-codon that matches up with the appropriate mRNA codon

Stop codons, UGA, UAA, and UAG, have no corresponding tRNA molecules

If codon on mRNA has UUU sequence, which codes for phenylalanine, then anti-codon on the tRNA will be AAA.

- tRNA molecules float in the cytoplasm and bind free amino acids.

Once bound to amino acids, the tRNAs (also called amino-acyl tRNAs) will seek out ribosomes.