Search over 10,000 free study notes

This question requires the knowledge of two equations from the Hardy-Weinberg Principle. p + q = 1 and p² + 2pq + q² = 1 where p = dominant allele, and q = recessive allele. Firstly ...

Natural selection can be defined as: The gradual process in which inherited characteristics become more or less common in a population, in response to the environment determining the breeding success of i...

High blood glucose levels - such as following a large, carbohydrate rich meal. The increase is detected by Beta cells of the pancreas, which relea...

The virus is causing less chlorophyll to be produced. This is a problem as chlorophyll is an essential component in photosynthesis. Photosynthesis is a process by which plants are able to use sunlight in ...

This question, from an AQA past paper, is worth 6 marks and it is asking for you to describe the process of transcription - you do not have to explain or say why things happen. You should make 6...