Genetic Variation (HSC SSCE Biology): Flashcards
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10 cards from this deck
Population genetics
Population genetics
Study of how genetic composition changes in groups over time
Gene pool
Gene pool
Complete collection of all genes & alleles in a population
Genetic diversity
Genetic diversity
Total range of genetic characteristics in a species
Three types of frequencies in population genetics
Three types of frequencies in population genetics
Phenotypic, genotypic, and allele frequencies
Allele frequency
Allele frequency
How common a particular allele is within a population
Microevolution vs macroevolution
Microevolution vs macroevolution
Rapid changes over short periods vs gradual over long periods
SNP (single nucleotide polymorphism)
SNP (single nucleotide polymorphism)
Single nucleotide replaced by another in DNA
SNP frequency threshold for classification
SNP frequency threshold for classification
Must occur in at least 1% of the population
Haplotype
Haplotype
Adjacent SNPs inherited together from one parent
GWAS (genome-wide association studies)
GWAS (genome-wide association studies)
Scans genetic markers to find variations linked to diseases