Question

It is theoretically possible for a gene from any organism to function in any other organism. Why is this possible ?

• A. All organisms have ribosomes.
• B. All organisms have the same genetic code.
• C. All organisms are made up of cells.
• D. All organisms have similar nuclei.

Answer 1

The correct option is B All organisms have the same genetic code.

Genes can be moved between species. Because of the universality nature of the genetic code, the polymerases enzyme are able to accurately transcribe a gene from another organism. For example, different species of bacteria obtain antibiotic resistance genes through the exchange of small chromosomes called plasmids.

Using this technique of gene transfer, recombinant DNA technology was developed.

So, the correct option is 'All organisms have the same genetic code'.