Notes for A1.2.7 Differences between DNA and RNA - IB | RevisionDojo
A1.2.7 Differences between DNA and RNA Notes
Key Differences between DNA and RNA
Although both DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are nucleic acids built from nucleotide monomers, they differ in several key features.
These differences are both structural, and molecular.
Transmits genetic information for protein synthesis
Stability
Stable due to double-stranded structure
Less stable, designed for short-term use
Location
Mainly in the nucleus (some in mitochondria)
Found in the nucleus and cytoplasm
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Questions
Recap questions
1 of 5
Question 1
Recap question
When exposed to a mildly alkaline environment (pH > 8), which of the following nucleic acids will undergo the fastest backbone cleavage, and why?
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Note
Structural Differences: Strands
One of the most fundamental differences between DNA and RNA is their structure:
DNA is typically double-stranded, forming a double helix
RNA is usually single-stranded
TipConsider 'D'NA as 'D' for double.
While RNA is generally single-stranded, it can form complex secondary structures by folding back on itself.
