Which of the following is NOT a major difference between DNA and RNA? RNA is only associated with coding parts of the genome. Uracil replaces thymine in RNA. RNA is single stranded and DNA is double stranded. RNA is much more structurally stable than DNA.

RNA is much more structurally stable than DNA.

Explanation:

Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) are both nucleic acids made up of nucleotide subunits and contains the genetic information of living cells. However, there are few structural and functional differences between them.

Firstly, RNA is a single stranded molecule as opposed to DNA that is a double helical structure consisting of long chains of nucleotides.

Secondly, the nucleotide that makes up both nucleic acids contains nitrogenous bases in its structure. These nitrogenous bases are four viz: Adenine, Guanine, Thymine, and Cytosine. Thymine in the DNA is replaced by Uracil in the RNA molecule.

Also, only the coding parts of the gene are transcibed into a mature RNA. Other non-coding regions are removed during post-transcriptional process. DNA contains both the coding and non-coding regions of the genome.

The answer is D because, DNA is a more structurally stable molecule than RNA. Hence, it can serve as a storage material for genetic information as opposed to the short-lived RNA that is only used to convey the information.

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