BRAINCAKERNA
RNA is a polynucleotide.
The pentose sugar is ribose and the nucleotides are joined by phospodiester bonds.
RNA contains four nitrogen-containing bases, adenine, cytosine, guanine and uracil.
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Key terms in this lesson
- nucleotide
- A molecule made of a pentose sugar, a phosphate group and a nitrogen-containing base.
- nucleolus
- A dense structure within the nucleus where ribosomal RNA is made and ribosomes are assembled.
- ribosome
- A small organelle, made of RNA and protein, that is the site of protein synthesis.
- gene
- A length of DNA that codes for a polypeptide or a functional RNA molecule, at a specific locus on a chromosome.
More in Nucleic Acids
- Nucleotides
- DNA
- Complementary Base Pairing
- Stability of the Double Helix
- Function of DNA
- Discovering DNA as the Hereditary Material
- DNA Semi-Conservative Replication
- Evidence for Semi-Conservative Replication
All 18 lessons in Nucleic Acids · All AQA AS-level Biology topics