Quiz #7 Flashcards
A genetic change (Allele Frequency) in a population
Evolution
Variation of a gene
Allele
a change in the base pair of DNA
Mutation
Random change in Allele frequencies in a population
Genetic Drift
a small number of people moving into a new population , introducing new alleles
Founder effect
a rapid change in an environment leading to massive death. The survivors may not have all the original alleles
Bottleneck Effect
the movement of some individuals from one population to another
Gene flow
causes the evolution of individuals to move from one population to another, causing a change in allele frequencies in either population.
Migration
a change in allele frequencies that occurs when individuals with greater reproductive success will increase in population
Natural Selection
natural selection occurs when certain allele increase reproductive success
Reproductive success
Alleles may be passed from parent to offspring
Hertability
- Fossil record
- Biogeography
- Morphology
- Molecular Biology
- Laboratory Research
evidence supporting evolution
remains or impressions of ancient organism
Fossil
allows us to look at transitional features
Fossil Record
finned fish evolved into amphibians
Lobe
study of the distribution patterns of living things around the world
Biogeography
vertebrate Embryos
Morphology
structures are that shared by common ancestors
Homologous structures
looking at similarities in DNA, RNA, proteins
the sequence of DNA is similar to organisms that are closely related
Molecular Biology
found in red blood cells
Hemoglobin gene
experiments in the lab can observe and measure evolution as it happenss
Laboratory Research
