The Theory of Evolution

adapted adaptive radiation adult alleles amino acids animals and plants archosaurs behaviour birds breeding bristle number cells cent chapter characters chromosomes colour CRUZ The University difficult diploid discussed DNA molecule Drosophila dumpy effects embryo environment enzyme evolution evolutionary changes evolved example explain extinct F₁ F1 hybrids fact favour females fertile Figure finches flies forms fossil frequency gametes genera genes genetic genotype geographical habitats haemoglobin heterozygote homozygotes homozygous horses human hybrids inbred increase individuals infertility inheritance interbreeding inviability isolation kind later loci male mammals mate mechanism meiosis melanism mice mutation natural selection normal number of eggs occur offspring organisms origin pair parents parthenogenetic particular phenotype polymorphism possible predators present probably produced protein races recessive gene replication resemble sequence sexual sexual reproduction shown similar single skull sperm structure subspecies suggested survive teeth theory tion variability variation wild populations zygote