3.7 Flashcards
Definition for species
A group of organisms that can interbreed to produce fertile offspring.
Population definition
a group of organisms of the same species occupying a particular space at a particular time that can potentially interbreed.
Definition of gene pool
refers to the combination of all the genes (including alleles) present in a reproducing population or species.
Definition of allele frequency
how frequently a particular allele appears in a population
The principle presumes that the proportion of dominant and recessive alleles of the gene won’t change from one generation to the next, provided 5 conditions are met
Large population
Mating within the population is random
No natural selection
No migration
No mutations
Equation for allele frequency
p+ q = 1
p = frequency of the dominant allele
q = frequency of the recessive allele
The total frequency of all possible alleles for a characteristic is
1.0
What is the equation for genotype frequency
p2 + 2pq + q2 = 1
p2 = frequency of homozygous dominant genotype
2pq = frequency of heterozygous genotype
q2 = frequency of homozygous recessive genotype
The total frequency of all three possible genotypes for one characteristic is
1.0