Answer: Codon
Explanation: A codon is a triplet of nucleotides in an mRNA that codes for specific amino acids. There are 64 possible codons. They are called the genetic codes. Three of these codons (UAA, UAG, UGA) do not code any known amino acid and are thus called termination codons. One of the codons (AUG) signals the beginning of translation and is thus called initiation codon.
Since carotenoids stabilize dangerous free radicals, we can assume that their function is to protect the cell from the free radicals.
Answer:
D. Trees grow back after a forest fire.
First blank - mitochondria
Second blank - ribosomes
