AQA Biology

Abacus College, Oxford

Here are the best resources to pass AQA Biology. Find AQA Biology study guides, notes, assignments, and much more.

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Ethical Controversies in Genetics
Lecture notes • 2 pages • 2022

With new genetic diagnostic and therapeutic capabilities come many controversies about how they should be used. For example, there are concerns that genetic information might be used improperly to discriminate (eg, by denying health insurance coverage or employment) against people with genetic risk factors for particular disorders.

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Mitochondrial DNA Abnormalities
Lecture notes • 2 pages • 2022

Mitochondrial disorders can be due to mitochondrial or nuclear DNA abnormalities (eg, deletions, duplications, mutations). High-energy tissues (eg, muscle, heart, brain) are particularly at risk of malfunction due to mitochondrial abnormalities.

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Multifactorial inheritance
Lecture notes • 1 pages • 2022

For many traits, expression involves multiple genes. Many such traits (eg, height) distribute as a bellshaped curve (normal distribution). Normally, each gene adds to or subtracts from the trait independently of other genes.

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Genetic Diagnostic Technologies
Lecture notes • 1 pages • 2022

Genetic diagnostic technology is rapidly improving. A small amount of DNA can be amplified using the polymerase chain reaction (PCR) process, which can produce millions of copies of a gene or gene segments.