Evolution 0.0 / 5 ? BiologyEvolution, extinction and natural selectionGCSEAQA Created by: Sam456Created on: 05-05-19 16:18 Mitosis The division of a cell into two identical daughter cells. 1 of 16 Meiosis When a cell splits into four. 2 of 16 Gamete A sex cell, such as a sperm or egg. 3 of 16 Reproduction The process in which a sperm fertilises an egg. 4 of 16 Chromosomes Genetic information for specific parts of an organism. 5 of 16 Mutation Undesirable or beneficial differences between humans. 6 of 16 Phenotype An observed characteristic of an individual. 7 of 16 Genotype The combination of alleles on organism has. 8 of 16 Heterozygous When two alleles are different. 9 of 16 Homozygous When two alleles are the same. 10 of 16 Cystic Fibrosis A disorder of cell membranes. 11 of 16 Polydactyly A disorder in which one has extra fingers or toes. 12 of 16 Variation The differences in the characteristics of individuals. 13 of 16 Evolution The gradual change inherited characteristics through a population. 14 of 16 Speciation When two populations have changed so much that they can no longer breed. 15 of 16 Extinction When there are no individuals left in a species. 16 of 16
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