Mechanisms I
Mechanisms II
Mechanisms III
Evidence of Evolution
Data Analysis
100
Change over time
evolution
100
All the genes shared by organisms of a population.
gene pool
100
Trait that helps an organism survive.
adaptation (ex. fins in the ocean)
100
Trait that is not inherited by offspring
acquired traits (ex. hair dyed blonde)
100
no change in allele frequencies
genetic equilibrium
200
choosing mates based on heritable traits
sexual selection
200
Group of organisms that can breed and produce fertile offspring.
species
200
Organism's ability to survive and reproduce in its environment.
fitness
200
Preserved remains of organism in rock, amber, or some other material.
fossil
200
The Hardy-Weinberg Principle states that a population is in genetic equilibrium unless certain factors change its ______________________________.
allele frequencies
300
Change in a population's gene pool over time.
evolution
300
Random changes in a population's gene pool.
DAILY DOUBLE
genetic drift
300
The process by which some organisms survive and reproduce more than others. (Survival of the Fittest)
natural selection
300
Which structure is not homologous to a cat’s leg?
a. dolphin’s flipper
b. penguin’s wing
c. monkey’s arm
d. shark’s fin
d. shark's fin
300
Type of selection resulting in two peaks on a bell curve for phenotypes of a population. (Both extreme traits are favored by natural selection.)
disruptive selection
400
What are the four conditions of natural selection?
1 - overproduction
2 - variation
3 - inheritance
4 - differential fitness
400
Type of genetic drift resulting from a drastic decrease in population size.
bottleneck effect
400
the formation of a new species
speciation
400
Which is not a vestigial structure?
a. thumbs
b. little toe
c. appendix
d. tailbone
a. thumbs
400
Which species is most closely related to the chimpanzee based on the data table?
human
500
Which is the correct Hardy-Weinberg Equation?
a) p2+2pq+q2=1
b) y=mx+b
c) v= (x2-x1) / (t2-t1)
d) p2+q=1
a) p2+2pq+q2=1
500
when two populations do not interbreed because of different mating rituals
behavioral isolation
500
genetic drift resulting from immigration/emigration
DAILY DOUBLE
founder effect
500
Which trait in the cladogram is shared by only mammals, reptiles, and birds?
amniotic eggs
500
If the frequency for the dominant allele is 0.4, what is the frequency for the recessive allele?
DAILY DOUBLE
0.6