DNA and RNA — Prelims Questions

Which of the following statements correctly differentiates between DNA and RNA?

Consider the following statements regarding DNA replication: 1. It is a conservative process where the original DNA molecule remains intact. 2. DNA ligase is responsible for unwinding the DNA double helix. 3. Okazaki fragments are synthesized on the lagging strand. Which of the statements given above is/are correct?

Which of the following types of RNA is primarily responsible for carrying the genetic code from DNA to the ribosome for protein synthesis?

The universality of the genetic code is significant because it implies:

With reference to CRISPR-Cas9 technology, which of the following statements is/are correct? 1. It is a gene-editing tool derived from a bacterial immune system. 2. It can be used to precisely cut and modify specific DNA sequences. 3. It has no ethical concerns associated with its application. Select the correct answer using the code given below: