Question

Select the correct match from the following.

• A. Hair root from human ---- Extracted and purified insulin
• B. Escherichia coli ---- smallest genome
• C. Female banded krait ---- DNA probe
• D. Pancreas from dog ---- Humulin

Hint:

Humulin is produced by recombinant DNA technology, not extracted from animal pancreas.

Answer 1

The Correct Option is C

Step 1: Understanding the concept.
DNA probes are short sequences of DNA used to detect complementary sequences. In biotechnology, certain organisms are used as sources of specific DNA sequences.
Step 2: Evaluating each option.
(A) Hair root from human ---- Extracted and purified insulin: Incorrect. Human insulin is produced using recombinant DNA technology, not directly from hair roots.
(B) Escherichia coli ---- smallest genome: Incorrect. Mycoplasma has the smallest genome, not E. coli.
(C) Female banded krait ---- DNA probe: Correct. DNA probes used for sex determination are prepared using sequences obtained from the female banded krait.
(D) Pancreas from dog ---- Humulin: Incorrect. Humulin is recombinant human insulin produced using genetically engineered bacteria.
Step 3: Conclusion.
The correct match is (C) Female banded krait ---- DNA probe.