Biology Comparisons DNA vs RNA ICSE CBSE Nashik Bright Tutorials
DNA vs RNA: 10 Key Differences in Structure and Function
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Tushar Parik
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DNA vs RNA: 10 Key Differences in Structure and Function
This comprehensive guide from Bright Tutorials covers everything you need to know — with clear explanations, exam tips, and key points for board exam preparation.
In This Article
DNA (Deoxyribonucleic Acid)
- Double-stranded helix (two complementary strands)
- Sugar: Deoxyribose
- Bases: Adenine (A), Thymine (T), Guanine (G), Cytosine (C)
- Found mainly in nucleus (also in mitochondria, chloroplasts)
- Function: Stores genetic information, self-replicates before cell division
RNA (Ribonucleic Acid)
- Usually single-stranded
- Sugar: Ribose
- Bases: Adenine (A), Uracil (U) instead of Thymine, Guanine (G), Cytosine (C)
- Found in nucleus and cytoplasm
- Types: mRNA (messenger), tRNA (transfer), rRNA (ribosomal)
- Function: Carries genetic instructions from DNA to ribosomes for protein synthesis
Key Differences Summary
- Strands: DNA = double, RNA = single
- Sugar: DNA = deoxyribose, RNA = ribose
- Base: DNA has Thymine, RNA has Uracil
- Stability: DNA more stable (deoxyribose), RNA less stable
- Function: DNA = storage, RNA = expression of genetic information
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