Question

Assertion :In recombinant DNA technology, human genes are often transferred into bacteria (prokaryotes) or yeast (eukaryote). Reason: Both bacteria and yeast multiply very fast to form huge populations which express the desired gene.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Assertion is incorrect but Reason is correct.

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

In recombinant DNA technology, a specific DNA molecule is inserted into a vector DNA molecule that can carry foreign DNA, and the resulting recombinant DNA is introduced into a host organism (often the common bacterium Escherichia coli or the yeast Saccharomyces cerevisiae). Large numbers of genetically identical host organisms which carrying the same specific foreign DNA molecule can be produced as they multiply rapidly and allow the DNA or its protein product to be produced in large quantities. Most often bacteria are used as the host organism, because of their fast growth and the ready availability of techniques for manipulating and growing bacteria in small- and large-scale cultures.