Questions: Which of the following is correct about the genetic code? Multiple Choice - Archaea and bacteria use one code and eukarya use another. - All living organisms use the same genetic code. - All prokaryotes use one code and all eukaryotes use another. - Fungi and animals use the same code, but plants use another. - Protists use a different code than other kingdoms.

The answer is the second one: All living organisms use the same genetic code.

Explanation for each option:

1. Archaea and bacteria use one code and eukarya use another.
   This is incorrect. While there are some minor variations in the genetic code among different organisms, the standard genetic code is nearly universal across all domains of life, including archaea, bacteria, and eukarya.

2. All living organisms use the same genetic code.
   This is correct. The genetic code is nearly universal, meaning that the same codons specify the same amino acids in almost all organisms. There are some exceptions, such as mitochondrial genomes and certain protozoa, but these are rare.

3. All prokaryotes use one code and all eukaryotes use another.
   This is incorrect. Both prokaryotes and eukaryotes generally use the same genetic code, with only minor variations in some cases.

4. Fungi and animals use the same code, but plants use another.
   This is incorrect. Fungi, animals, and plants all generally use the same genetic code, with only minor exceptions.

5. Protists use a different code than other kingdoms.
   This is incorrect. While there are some variations in the genetic code among certain protists, the majority still use the standard genetic code shared by other kingdoms.

In summary, the genetic code is nearly universal across all living organisms, with only a few rare exceptions.