Question

Production of a human protein in bacteria by genetic engineering is possible because :

• A. Bacterial cell can carry out the RNA splicing reactions
• B. The human chromosome can replicate in bacterial cell
• C. The mechanism of gene regulation is identical in humans and bacteria
• D. The genetic code is universal

Answer 1

Answer: (D)

The genetic code is universal

Answer 2

The genetic code, which specifies the relationship between DNA or RNA sequences and the amino acids they code for, is nearly identical in all living organisms, including humans and bacteria. This universality of the genetic code allows for the expression of genes from one organism (e.g., human) in another organism (e.g., bacteria) because the bacterial cellular machinery can read and translate the genetic information into the corresponding protein. While there may be differences in gene regulation mechanisms and post-translational modifications, the universal genetic code is a key factor that enables the production of human proteins in bacterial cells through genetic engineering.

So, the correct option is (D): the genetic code is universal