Exam 8: Molecular and Evolutionary Ecology

According to the classic study by de Wit et al.(1966),soybeans were grown in mixtures with a grass.Mixtures either received mineral nitrogen,were inoculated with Rhizobium,or both.The results of this experiment showed what?

mtDNA stands for what?

Each year individuals of a species of salamander return to the same pool where they were born to breed.This is an example of which of the following?

A population of organisms is divided by a large seismic event.The populations remain split for hundreds of years.One side of the split population is exposed to high levels of ultraviolet radiation,while the other side is primarily exposed to moderate levels of ultraviolet radiation as had been in the shared environment in the past.What hypothesis might you derive with regard to how these populations have responded to ultraviolet radiation?

Based on the data in Figures 8.9a and 8.9b,how much longer did it take for intermediate virulence to arise in Australia than in Britain?

What is one factor that appears to drive the coevolution of insect-plant arms races?

What term would be used to describe the process whereby nitrogen is converted into molecules that plants can use?

About _______% of flowering plants possess morphological features that serve to disperse seeds.

In Figure 8.13a,the percentage of herbivory between Azteca spp.and Myrmelachista schumanni in ant exclusions _______.

Which ecology terms define differentiation within populations where relatedness is much greater within groups rather than between them?

Are mutations in the coding regions of DNA primarily favored or selected against?

You might expect the evolution of specialized animal pollinators and specialized flowers because ______________.

You are working on a research project in a garden and notice that many different insect species visit the same species of plant in the garden.All of the insects appear to be collecting nectar and pollen.This is likely because ________.

Which molecular marker is a series of nucleotide bases repeated numerous times and is found in noncoding regions of DNA?

The term symbiosis means what?

What would it mean if you looked at a locus in a sequence of DNA and found a SNP that was bi-allelic?

Regions of DNA that do not vary between individuals are referred to as what?

Multiple regions of DNA that are used as markers would be referred to as what?

Which molecular technique can be used to identify whether labeled foods are actually labeled correctly?

If within a single population there were four genetically distinct morphs,what would this mean?