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Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Generational divide
A difference in attitudes and values between people belonging to different age groups.
Generation gap
Differences in attitudes, values and behaviour between younger and older generations.
Generation gap
A difference in attitudes between older and younger people, often shaped by different experiences and expectations.
Generator
A device that converts the kinetic energy of a rotating shaft into electrical energy.
Generator
A device that transfers energy from motion into electrical energy.
Generator
A device that converts movement into electrical energy.
Generator effect
The production of a potential difference when a conductor moves relative to a magnetic field, or when the magnetic field around it changes.
Gene regulation
The switching on or off of genes, which controls which proteins a cell makes.
Generic convention
A recognisable feature commonly associated with a category of film, which helps audiences identify its genre and form expectations.
Generosity
Giving freely without selfish attachment to praise, reward or receiving something in return; also called dana.
Genesia
An annual Athenian festival honouring dead ancestors across the family line.
Genesis
The first book of the Bible, containing two accounts of creation. Its name means 'beginnings'.
Gene technology
The use of genes, DNA or methods that alter genetic material for a practical purpose, including the treatment of disease.
Gene technology
The use of genetic information or changes to DNA for purposes such as making medicines, testing for inherited conditions or treating disease.
Gene theory
An explanation of inheritance in which genes are units of genetic information located on chromosomes.
Gene therapy
A medical approach that introduces or alters genetic material in a patient's cells to treat disease.
Gene therapy
A medical approach that modifies a patient's genetic material to treat a disorder, for example by introducing a working version of a faulty gene.
Genetically identical
Having the same genetic information.
Genetically modified crop
A crop whose genetic material has been deliberately altered to give it particular characteristics, such as improved nutritional content.
Genetically modified crop
A crop plant whose genes have been modified using genetic engineering.
Genetically modified food
Food from an organism whose genetic material has been deliberately altered using genetic technology to produce a desired characteristic.
Genetically modified (GM)
Describes an organism whose genetic material has been changed using genetic engineering.
Genetically modified (GM) crop
A crop plant whose genome has been modified by introducing a gene from another organism.
Genetically modified (GM) food
A food produced from an organism whose genetic material has been deliberately altered to give it particular characteristics.
Genetically modified (GM) organism
An organism whose genetic material has been changed using genetic engineering.
Genetically modified organism
An organism whose genetic material has been deliberately altered using gene technology to give it a desired characteristic.
Genetically modified organism (GMO)
An organism whose genetic material has been changed using genetic engineering.
Genetic analysis
The study and comparison of DNA or RNA sequences to investigate relationships between organisms.
Genetic analysis
The comparison of genetic material, such as DNA or RNA base sequences, to investigate similarities, differences and relationships between organisms.
Genetic code
The order of nucleotide bases in DNA, represented by the letters A, T, C and G, that carries biological information.
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