Question

Given below are two statements:
Statement (I) : Science of identifying the sequence of DNA in species is called Genomics.
Statement (II) : PCR techniques provide several copies of specific DNA sequence.
In light of above statements, choose the correct answer from the options given below:

• A. Both Statement (I) and Statement (II) are correct.
• B. Both Statement (I) and Statement (II) are incorrect.
• C. Statement (I) is correct but Statement (II) is incorrect.
• D. Statement (I) is incorrect but Statement (II) is correct.

Hint:

PCR is essentially an "in vitro cloning" machine that amplifies DNA exponentially through cyclic steps of denaturation, annealing, and extension.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Molecular biology and biotechnology have revolutionized modern agriculture through genome mapping, diagnostics, and gene amplification techniques.

Step 2: Detailed Explanation:
Let us analyze each statement:
1. Statement (I): Genomics is defined as the interdisciplinary field of biology focusing on the structure, function, evolution, mapping, and sequencing of genomes. Identifying the exact nucleotide sequence of DNA in different species is the primary objective of structural genomics. Thus, Statement (I) is correct.
2. Statement (II): Polymerase Chain Reaction (PCR), developed by Kary Mullis in 1983, is a robust laboratory technique used to amplify a specific segment of DNA in vitro, generating millions to billions of exact copies of that specific sequence. Thus, Statement (II) is correct.
Since both statements are factually and scientifically correct, option (A) is the appropriate choice.

Step 3: Final Answer:
Therefore, Both Statement (I) and Statement (II) are correct.