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GCSE Combined Science · key term
DNA that carries inherited information and instructions for making proteins.
Used by OCR
Specification B1.1b · Biology Paper 1
Revise: Sub-cellular Structures and FunctionsPlant and animal cells are eukaryotic cells: their main genetic material is enclosed in a nucleus. Bacteria are prokaryotic cells: they have no nucleus and are usually much smaller than plant and animal cells.
Biology, Combined Science
The DNA that carries instructions controlling how a cell or organism develops and functions.
Bacteria have genetic material even though they have no nucleus. Their main chromosome lies free in the cytoplasm.
When comparing genetic material, state both its location and its form: chromosomes inside a nucleus in plant and animal cells; a circular chromosome in the cytoplasm of a bacterial cell, sometimes with plasmids.
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Cells are the basic units of living organisms. Their genetic material is DNA, which carries instructions controlling how they develop and function. These instructions allow cells to make proteins, including enzymes that control chemical reactions.
