Q. Consider the following statements regarding the nucleotide of DNA:
1. It is an organic molecule that is the building block of DNA and RNA.
2. It is made up of phosphate group and a nitrogenous base with no carbon sugar.
Which of the statements given above is/are correct?
A nucleotide is an organic molecule that is the building block of DNA and RNA.
- They also have functions related to cell signaling, metabolism, and enzyme reactions.
- A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base.
- The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.
- RNA contains uracil, instead of thymine.
- A nucleotide within a chain makes up the genetic material of all known living things.
- They also serve a number of functions outside of genetic information storage, as messengers and energy moving molecules.