Chapter 21 Flashcards
this is primarily concerned with genetic processes that occur within individuals and how genes are passed from one individual to another, thus unit of study for ______ ______ is the individual
transmission genetics
how genetic information is encoded within DNA and how biochemical processes of the cell translate the genetic information into influencing the phenotype, focus is on the cell
molecular genetics
applies the principles of transmission genetics to large groups of individuals, focusing on the transmission processes at one or a few genetic loci
Population genetics
who championed neo-darwinian synthesis
Sir Ronald Fisher, Sewall Wright, and J.B.S. Haladane
Population geneticists investigate the patterns of genetic variation found among individuals within groups and how these patterns vary geographically and change over time
genetic structure of populations
This is a group of interbreeding individuals who share a common set of genes.
Mendelian population
The principal aim of population genetics is to understand the genetics of what?
evolution
genes shared by the individuals of a Mendelian population are called what?
gene pool
what does a frequency proportion always range from ?
0 and 1
if 43% of the people have red hair what is the frequency?
0.43
how do you calculate genotype frequencies?
count number of individuals with one particular genotype and divide this number by the total number of individuals in the population.
who worked with moths in England?
E.B. Ford
in most cases geneticists use what type of frequencies to describe how the gene pool changes over time?
allele frequency
Are alleles or genotypes passed from one generation to next?
alleles because the genotype breaks down to alleles when gametes are formed
Any locus that has more than one allele present within a population is what?
Polymorphic locus