Populations & their Allele Frequencies Comparison of allele frequencies of geographically isolated populations Allele frequency is a term that assigns a?relative frequency?of an allele at a par...
Polyploidy & Speciation NOS: Looking for patterns, trends and discrepancies—patterns of chromosome number in some genera can be explained by speciation due to polyploidy When patterns and trend...
Gradualism & Speciation Speciation can be defined as the emergence of new and distinct species that are reproductively isolated from other separate species Two theories exist to explain the eme...
The Process of Evolution by Natural Selection Evolution requires that?allele frequencies change?with time in populations Evolution is defined as the?cumulative change in the heritable characteristi...
Gene Pools A gene pool consists of all the genes and their different alleles, present in an interbreeding?population Some populations of the same species are geographically isolated from each other...
Types of Variation The ways in which organisms differ from one another is called?variation Variation occurs?between species In fact, species are classified based on differences between their respec...
Chi-squared Test and Dihybrid Crosses Use of a chi-squared test on data from dihybrid crosses The difference between?expected?and?observed?results in experiments can be statistically significant or...
Identifying Recombinants in Crosses Genetic diagrams involving autosomal linkage often predict solely?parental type?offspring (offspring that have the same combination of characteristics as their p...
Exceptions to Mendel's Rules NOS: Mendel used observations of the natural world to find and explain patterns and trends Since Mendel, scientists have looked for discrepancies and asked questions ba...
