Evolution Concepts
the total make up of genes in a population
I cannot be applied to extinct/asexually reproducing organisms
Biological Species concept
p = 0.12345; define q2
0.7683399025
An earthquake separates a bunch of goats so that they cannot interbreed anymore.
Geographical isolation
Female peacocks select favorable male peacocks
intersexual selection
this takes place when a small number of organisms leave a larger population and start their own population
founder effect
I am based on the calculated evolutionary history of a group of organisms
phylogenetic species concept
10,000 ducks were cloned in a lab and allowed to reproduce and are given everything they need. All of these conditions of Hardy-Weinberg equilibrium are not met in this scenario.
1. mutations
A weenie dog and a German shephard have NO shot at reproducing for this reason.
Mechanical incompatability
Two bucks fight each other for the right to mate with a doe
intrasexual selection
the majority (but not all) of the dinosaurs were wiped out by a huge asteroid.
bottleneck effect
What drives speciation?
What are the 2 necessities we discussed for speciation?
Straight from page 12 of Dr. Pomarico's notes:
Evolution.
1. isolation of populations
2. Genetic diversity
DOUBLE JEOPARDY!
What would happen if all of the conditions of Hardy-Weinberg equilibrium were met in a population?
(BE VERY SPECIFIC)
No evolution.
One population of sheep breeds during the winter months. One population breeds during the summer.
Temporal Isolation
BET ALL YOUR POINTS!
A wolf pack has a range of phenotypes running from white to black. Wolves with gray coats have the most favorable phenotype.
Stabilizing selection
Define fitness.
The ability of an organism to reproduce and give rise to viable offspring that can reproduce too
This type of speciation occurs when a species gives rise to a new species in the same location.
Sympatric speciation
BET ALL YOUR POINTS!
There are 9324 of the 10,000 iguanas in a population express the dominant phenotype. How many heterozygous iguanas are present?
(676/10,000)1/2 = 0.26 = q
1 - 0.26 = 0.74
2 x (0.26) x (0.74) x (10,000) = 3640
Hybrid viability
The process by which humans drive evolutionary change in other species
artificial selection
The difference between punctuated equilibrium and gradualism is....
gradualism- transitional fossils are seen to support the gradual transformation of 1 species to another
punctuated equilibrium- pattern when no transition fossils can be found, just 1 species and then what it "suddenly" evolved into
The DNA/RNA/protein structures of separate organisms are compared to see whether they are the same species.
Morphological species concept
What are the 2 types of non-random mating?
What do they typically result in?
Inbreeding and Assortative mating. Homozygous individuals.
DOUBLE JEOPARDY!
When a horse and a donkey mate, they give rise to a mule. The mule cannot reproduce.
Hybrid fertility
There is a population of snakes. The snakes vary in size from short to long. The medium-sized snakes are too short to eat larger prey and too long to get in narrow places.
Disruptive selection