Question

Bacteria genetically engineered to express a cDNA from a plant cell will

• A. synthesize a protein with the same sequence of amino acids as in the plant and, therefore, the protein will have the same structure and function as in the plant
• B. synthesize a protein with essentially the same sequence of amino acids as in the plant but with differences relating to different codons between prokaryotes and eukaryotes
• C. not be able to synthesize a protein due to the presence of exon, splicing sequences in the DNA sequence from the plant
• D. not be able to synthesize a protein because translation is coupled with transcription and post- transcriptional processing does not occur in it.

Answer 1

Answer: (A)

The bacteria which is genetically engineered to express a cDNA from a plant cell will synthesize a protein with the same sequence of amino acids as in the plant. Thus, the protein will have the same structure as it had in the plant. Also, it will perform the same function which it performed in the plant.