The structure of DNA

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    Created by
    Amelia Lee

    Cards (8)

    • The nucleus contains chromosomes, these are made from the molecule DNA.
    • There are 46 chromosomes in every human body cell and they are arranged in pairs. (these are called homologous pairs)
    • Each pair consists of one maternal chromosome and one paternal chromosome.
    • There are 23 pairs in humans. Each individual chromosome is a long length of DNA, some sections of DNA are the instructions to build proteins; these are genes.
    • Genes are short lengths of DNA which code for specific amino acids
    • Interphase is the longest phase, during which DNA replicates to form two identical copies.
    • The cell cycle is the series of events that occur between one cell division and another.
    • DNA synthesis occurs during interphase when DNA replication takes place.