A
What is evolution
genetic change in species over time.
what is a gene pool
all the alleles of the genes in a population
bottle neck effect
lost of genetic diversity due to natural disasters
what is sexual selection
looks/ traits that would help get a mate.
what is convergent evolution
similarities due to selective pressures in like enviorments
what is an evolutionary tree
a diagram that reflects evolutionary relationships
what is the five needed conditions for Hardy-Weinberg Equilibrium
no mutation, no migration, large gene pool, random mating, no selection
founder effect
group of genes leave and create their own population
what is good genes hypothesis
females choose mates based of chance of survival
how did Darwin describe evolution
terms of decent (shared ancestry) and modification (accumulation of differences)
what is the study of fossils
paleontology
what are the two Hardy-Weinberg expression
p^2+2pq+q^2=1
p+q=1
what is stabilizing selection
where the average is more favorable
what is runaway hypothesis
females choose mates based on apparance
what is catastrophism
the belief that periods of catastrophic extinctions occured
what is the principle of use and disuse
body parts in use grow larger while those not in use deteriorate
what is a genetic drift
the changes in the alleles due to change events
when the extreme is favored
what are the three domains
bacteria, Archean, and Eukaryota
what drug led to a supperbug
penicillin
what is homology
the similarity in characteristics from ancestry
what is gene flow
movement of alleles (migration)
what is disruptive selection
when two or more extremes are favored
similarities that develop due to convergent evolution
what is artificial selection
intentional breeding of certain traits to reach a desired outcome