AQA Biology TRILOGY Paper 2

1 gene makes - 1 protein 2 copies of this type of allele are rquired - recessive A community where all species and environmental factors are in balance - A stable community A different version of a gene - Allele A gradual change in a species of time - Evolution A group of organisms that is similar enough to be able to breed together to produce fertile offspring - Species A mix of living organisms and the environment e.g. a woodland - ecosystem A molecule of DNA coiled and mixed with proteins - a chromosome A motor neuron - What type of neuron is this? A record of the entire genetic make-up of humans. Used to help with research of diseases. - The human genome. A relay neuron joins a - sensory neuron and a motor neuron A risk factor for type 2 diabetes is - obesity