September 27, 2025

What Is The Difference Between Dna And Rna

Q: Which molecule is more stable, DNA or RNA?

DNA is significantly more stable than RNA. Its double-helix structure and deoxyribose sugar make it less prone to degradation, which is ideal for its role as a long-term genetic blueprint.

Q: Where are DNA and RNA found in a eukaryotic cell?

DNA is primarily found in the cell's nucleus, with a small amount in the mitochondria. RNA is synthesized in the nucleus and then moves to the cytoplasm, where it performs its functions at the ribosomes.

Learn the key differences between DNA (Deoxyribonucleic acid) and RNA (Ribonucleic acid), including their structure, sugar, bases, and primary function in cells.

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DNA vs. RNA: Core Function and Structure

The primary difference between DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) is their function and structure. DNA is a double-stranded molecule responsible for storing and transferring long-term genetic information. RNA is typically a single-stranded molecule that acts as a messenger, carrying instructions from the DNA to control the synthesis of proteins.

Key Chemical Distinctions

There are two main chemical differences. First, the sugar in DNA is deoxyribose, while in RNA it is ribose. Second, both use the bases adenine (A), guanine (G), and cytosine (C). However, DNA uses thymine (T) as its fourth base, whereas RNA uses uracil (U) in its place.

Frequently Asked Questions

Which molecule is more stable, DNA or RNA?

Where are DNA and RNA found in a eukaryotic cell?