Genetic Engineering Explained Genetic engineering is a technique used to deliberately modify a specific characteristic (or characteristics) of an organism. The technique involves removing a gene (o...
Recombinant DNA The genetic code is universal, meaning that almost every organism uses the same four nitrogenous bases – A, T, C & G. There are a few exceptions This means that the same codons ...
Role of IUCN & CITES in Conservation International cooperation is essential if conservation is to be successful There are several agreements and authorities that exist within and between countr...
Controlling Invasive Species A species that has moved into an ecosystem where it was previously unknown is an invasive species An invasive species can occur naturally as a result of a species migra...
Assisted Reproduction Endangered mammals tend to have small and isolated populations Small populations are prone to inbreeding and inbreeding depression Inbreeding depression is the reduction in fi...
Methods of Conservation An endangered species is a species that is being threatened with extinction Conservation of endangered species can be approached in several different ways Ideally a species ...
Reasons for Maintaining Biodiversity Biodiversity is the range and variety of genes, species and habitats within a particular region It is made up of three components: Genetic diversity Species div...
Reasons for Extinction Extinction is when a species comes to an end or dies out Extinction is a natural biological process that happens on planet earth and studies of fossils and ancient DNA have s...
Simpson's Index Once the abundance of different species in an area has been recorded the results can be used to calculate the species diversity or biodiversity for that area Species diversity looks...
