Answer:
An amino acid can be encoded by more than one codon.
Explanation:
Codons are triplets of nucleotides in mRNA that are used for the protein synthesis (translation). A codon specifies a single amino acid, but there are exceptions. tRNA molecule contain anticodons, triplets of nucleotides that are complementary to codons. So, during the translation, tRNA carries the amino acid, that corresponds to the codon in mRNA.
Degenerate genetic code (more than one codon can code for the same amino acid) is important, because when point mutation occurs it is possible that the amino acid remains unchanged.
Plate tectonics located in our crust crashing or colliding into each other cause earthquakes to occur.
The mitochondria is the powerhouse of the cell because it produces ATP, which is energy.
The correct option is B. 80% of the radioactive phosphorus used in the experiment entered the cell showing that DNA was the hereditary material.
