Contains excellent and concise revision notes for AQA A-level Biology Control of Gene Expression. Topics covered: tumour suppressor genes, abnormal methylation of tumour suppressor genes, oestrogen concentrations and breast cancer. Also includes: gene mutations - substitution, deletion, addition, duplication, inversion and translocation as well as causes, advantages and disadvantages of mutations.

Excellent summarised notes for AQA A level Biology Section 8: Recombinant DNA Technology, 21.5: GENETIC FINGERPRINTING. 4 PAGES 730 WORDS

Excellent revision notes for AQA A-level Biology Section 21.4 Recombinant DNA Technology - LOCATING GENES, GENETIC SCREENING AND COUNSELLING. Topics covered: DNA probes, locating specific alleles on genes, DNA hybridisation, genetic screening and personalised medicine and genetic counselling. [4 pages, 918 words]

AS/A-level AQA Chemistry revision notes on atomic structure, fundamental particles, mass spectrometer, electron configuration and amount of substance. Topics also include: isotopes, electron arrangement and ionisation energies - successive + trends. briefly touches on some of the chemistry equations. Suitable for AQA spec. as I used the course textbook and specification to make the notes, OCR/Edexcel and other exam board users can also use these for understanding basic chemistry but they should cross reference the content to ensure they don’t miss key information listed in their specification. Please leave a review :) 6 PAGES / 1792 WORDS

(AQA) A-level Biolgoy Mass Transport in Plants: XYLEM and COHESION TENSION THEORY mind map! for detailed notes please refer to textbook! this is only a brief summary, good for quick revision and recall, make flashcards from or stick around your room :)

Excellent revision notes made for AQA A-level Biology, section 8: The Control of Gene Expression - STEM CELLS + TOTIPOTENCY. Includes: type of stem cells (adult, totipotent, pluripotent, multipotent and unipotent), induced pluripotent stem cells, and pluripotent cells in treating human disorders. 2 PAGES, 462 WORDS