Exam One
In a certain plant species, the allele for tall height (T) is dominant to short height (t). If 9% of the plants are short (tt), this is the percentage of the population expected to be heterozygous under Hardy-Weinberg equilibrium.
What is 42%?
You are visiting a developing country and get diarrhea from the drinking water. What organism is this and what sub supergroup does this belong to?
What is Giarda and Diplomonads?
This is the effect on plant cells if a plant has insufficient Phosphorous and why.
What is because the cell wall is made of a phospholipid bilayer, insufficient phosphorous could begin to degrade the cell wall?
Cleavage pattern present in deuterostomes
What is radial/indeterminate cleavage, by the time the embryo gets to the four-cell stage, the cells still retain their totipotency
Number of monophyletic clades present in this cladogram (See slideshow)
What is four?
A scientist discovers that a sample of a radioactive isotope has only 6.25 g remaining after 20 days. If the isotope has a half-life of 5 days, this was the initial mass of the sample
What is 100 grams?
Someone you know has been diagnosed with "sleeping sickness", a disease that consumes red blood cells. Select the organism and the supergroup it belongs to
What is Trypanosoma and Excavates?
From the topside of the leaf to the bottom, list the tissues that make up a leaf.
What is stomata with guard cells, mesophyll made up of palisade then spongy cells, and then stomata with guard cells?
Primary pacemaker
What is the sinoatrial node?
Members of this division of fungi have gills where 4 reproductive structures form.
What is basidiomycetes?
Organism at the highlighted position. (See slideshow)
Supergroup that contains Diplomonads, Parabasalids, Euglenozoans
What is Excavates?
Describe both components of the cohesion-tension theory.
What is cohesion- water sticks together by hydrogen bonds?
and
What is tension- water is pulled up like a chain because water molecules bind together?
Three functional components of a homeostatic control system.
What is receptor (does the monitoring), control center (responds to the monitoring), and effector (changes to moderate the "bad")
List the major taxonomic clades in order from most inclusive to least inclusive
What is Domain Kingdom Phylum Class Order Family Genus Species?
A population of birds lives across a mountain range. Birds at high altitudes have larger lungs and more efficient oxygen transport than those at lower altitudes. What this variation represents
What is a cline according to altitude?
Select all organisms that are parasitic, have two nuclei, and multiple flagella
What is Diplomonads?
Describe the steps of transpiration.
What is water evaporates through stomata, water leaving stomata pulls up water from xylem, and then those water molecules pull up the "chain" of water molecules made possible by cohesion-tension?
Sequence of blood flow.
What is heart > arteries > arterioles > capillaries > venules > veins > heart
Evolution of Circulatory Systems
2-chambered heart (fish)
3-chambered heart (amphibians)
4-chambered heart w/ bypass (reptiles)
4-chambered heart (birds and mammals)
"x" According to the Maximum Likelihood principle (See slideshow)
What is 3?
Has three pollen openings
What are dicots?
The division of fungi and process allows for the production of the antibiotic penicillin.
What is ascomycetes via secondary metabolites?
Components both circulatory systems have in common.
What is a fluid that circulates, channels that the fluid circulates through, and a pump to keep the fluid moving?
The two mechanisms of isolation and the difference between the two.
What is allopatric speciation is caused by gene pools being geographically isolated and sympatric speciation is caused by the population being in the same geographic area but separated otherwise?