Unit 7 - Evolution

Miller Urey Experiment

The ________ demonstrated that several organic compounds could be formed spontaneously by simulating the conditions of Earths early atmosphere.

Differential reproductive success

________**: measures how many offspring you produce that survive relative to how many the other individuals in your population produce.

Sexual selection

________ is purely about access to mating opportunities.

Lamarck

________ confused genetic and environmental (postconceptive) change, which is not surprising because no one had discovered genes yet.

Molecular data

________ such as DNA or protein sequences can be used to construct phylogenetic trees or cladograms.

Geological evidence

________** provides support for the models of the origin of life on Earth.

Divergent evolution

________ can lead to speciation (allopatric or sympatric)

Q

________: the frequency of allele 2, often the recessive allele.

Polyploidy

________**- A condition in which an individual has more than the normal number of sets of chromosomes.

spectrum of variation

Selection is disruptive when individuals at the two extremes of a(n) ________ do better than the more common forms in the middle.

q² represent

P² + 2pq + q²= 1, where p² and ________ the frequency of the two homozygous conditions (AA and aa)

Artificial selection

________**: when humans become the agents of natural selection.

single population

Allopatric speciation**- Interbreeding ceases because some sort of barrier separates a(n) ________ into two.

Lamarck

________** proposed the idea that evolution occurs by the inheritance of acquired characters.