Question

Q:Suppose the human gene coding for hemoglobin is inserted into a bacterial plasmid. A bacterial culture is transformed with the recombinant plasmid. Which of the following statements will be true?
A.The bacteria will not survive.
B.The bacteria will produce only human hemoglobin.
C.The bacterial will produce human hemoglobin and its own bacterial proteins.
D.The bacteria will produce human hemoglobin and other human proteins.

Answer 1

The answer is C.The bacterial will produce human hemoglobin and its own bacterial proteins.

Bacteria have transcriptional and translational machinery for production of their own proteins. If the human gene coding for hemoglobin is inserted into a bacterial plasmid, it is one protein more bacteria must produce. So, they will produce human hemoglobin but they will produce their own proteins as well.