Hardy-Weinberg Principle - 17.2b

Hardy-Weinberg Principle - 17.2b - The popn that's not...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The popn that's not evolving- Aka) no change in allele frequencies - What's the simplest scenario of evolution (or lack thereof): Allele frequencies not changing --> evolution not occurring • Null model : if nothing happens, what will the situation look like? They serve as a measure against what happens if stuff actually changes- Use them to predict what we would see if a factor had an effect/no effect- They're theoretical references - Can use them to measure observations- Hardy Weinberg: Freqs of alleles + genotypes are preserved from gen to gen in pop'ns that are not evolving- HW looks one gene at a time (applied to (possibly multiple) alleles of ONE gene) illustrates how the allele and genotype freqs would stay the same if the population was not evolving- In terms of evolution and HW : specifies conditions when diploid organisms achieve genetic equilibrium (for gene of interest) If conditions are NOT met, (aka, mutations do occur, etc) then it provides evidence for evolution...
View Full Document

This note was uploaded on 03/15/2011 for the course BIOL 1010 taught by Professor Anafi/quinlan during the Spring '08 term at York University.

Ask a homework question - tutors are online