The biotech company Medicago expresses viral genes in tobacco plants to generate flu vaccines. In the genetic code, the codons CAU and CAC both encode amino acid histidine. This ability to interchange multiple codons for a single amino acid is an example of how the genetic code is .

Degenerate.

Explanation:

The genetic code has following properties -

Out of these properties the Property of Degeneracy has been used in the situation mentioned in the question. Due to degeneracy of the genetic code, more than one codons can code for a single amino acid. Property of degeneracy in the code minimizes the mutational lethality.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

hope it mark me as brainlieast.