Q. Consider the following statements regarding Genes and DNA:
1.A gene is a specific segment of DNA that contains instructions for producing a functional product, usually a protein.
2.In the DNA double helix, the four nucleotide bases pair specifically: Adenine with Thymine, and Cytosine with Guanine.
3.The nitrogenous base Uracil is a primary component of the DNA molecule, providing the code for replication.
Which of the statements given above are correct?
Answer: A
Notes:
Explanation:
- Statements 1 and 2 are correct. A gene is a segment of DNA that contains the necessary information to produce a functional product, typically a protein. The sequence of these bases encodes genetic information. The specific pairing of the bases (A with T, and C with G) allows for the replication of DNA.
- Statement 3 is incorrect because Uracil is found only in RNA. DNA uses Thymine instead of Uracil.
