B1 evolution and speciation and genetic disorders 3.0 / 5 based on 2 ratings ? BiologyEvolution, extinction and natural selectionGCSEEdexcel Created by: Ruby TurnerCreated on: 17-04-13 14:53 Adaptations Organisms have certain characteristics that allow them to survive in particular places, these are adaptation 1 of 11 Alleles Every gene comes in different types called alleles, an eye colour gene may come in a blue type allele and brown type allele 2 of 11 Habitats The place an organism lives in 3 of 11 Characteristics the features of an organism 4 of 11 Evolution Gradual change over a period of time 5 of 11 Speciation When a species is split up into different habitats and one evolves differently so becomes a different species 6 of 11 Variation Differences between characteristics in different organisms 7 of 11 recessive allele AN allele that will only have an effect if the other allele is also recessive 8 of 11 Dominant allele will always have an effect 9 of 11 Genotype The genetic constitution of an individual organism 10 of 11 Heterozygous that the person has a dominant and recessive allele 11 of 11
Comments
No comments have yet been made