A | B |
Disruptive selection | Extreme types are favored |
Balanced Polymorphism | Disruptive selection in which one population is divided into two distinct groups |
Directional Selection | One phynotype replaces another in the gene pool |
Sexual selection | selection based on secondary sex characteristics and comptetion for mates |
Sexual dimorphism | Differences in apperences between the sexes. |
Insectecide resistance is an example of... | Directional selection |
Swiss starlings that lay 5 eggs are most successful is an example of... | Stabilizing selection |
Mice that are Black or White survive at a higher rate than grey mice is an example of... | Balanced polymorphism |
Peppered moths were white than the black allele was favored is an example of.... | Directional selection |
Male elephant seals fighting for supremancy of a harem is an example of | Sexual selection |
Darwin breed pidgions for different traits | Artificial selection |
Balanced Polymorphism, Geographic Variation, Sexual Reproduction, Outbreeding, Diplody, hererozgote Advantage, Frequency-dependent selection, and Evolutionary neutral traits are all.... | Sources of variation in a population |
Geographic Variation | North- south cline |
Sexual reproduction | causes recomination and shuffling of alleles durring meiosis and fertilization |
Independent assortment of chromosomes | metaphase 1 recomining unlinked genes |
Crossing-over | exchange of genetic material of homologous chromosomes during meiosis 1 |
random fertilization | one lucky ovum fertilized by one lucky sperm |
Outbreeding | mating organisms of the same species that are not closely related |
Inbreeding | mating organisms of one species that are closely related |
Alpha male chases away younger mature males results in | outbreeding |