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Micelles, which are spheres of fatty acids or phospholipids, are limited to a diameter of roughly 20 nm. Vesicles are spheres composed of a phospholipid bilayer. From your understanding of lipid structures and bilayer formation, are vesicles limited to twice the diameter of micelles (40nm)?
What are some reasons for reestablishing wolves in Yellowstone National Park? What effects might the reintroduction of wolves have on the ecological communities in the region? What might be completed to mitigate the conflicts between ranchers and wol..
The maltose transporter maltoporin spans the outer membrane of E. coli. It is comprised of 18 successive antiparallel Beta - strands arranged like the staves of a barrel to create a channel through the membrane.
Explain why fungi are characterized as being either saprophytic or parasitic. How does the fungi benefit by being saprophytic or parasitic?
Why is important to get a bacterial lawn rather than isolated colonies on the plate? Does the zone of inhibition's edge indicate the limit of antibacterial agent diffusion into the agar?
A young man was brought to the hospital suffering an unknown disease. Unfortunately, the young patient did not make it. Upon examination of his liver cells it was determined that the liver cells were extremely unhealthy.
In an experiment to look at length of cell cycle phases, cells were first treated with colchicine to arrest them at mitosis. What cytoskeletal element is inhibited by colchicine to cause this arrest?
Tomato plants usually have flowers in small groups and produce fruits that are round and smooth. Three mutations were found: peach (hairy fruits), oblate (flattened fruits), and clustered (with many flowers in a group).
Determine characteristics distinguish the animals and the animals are thought to be monophyletic. What is your explanation for it.
A sex linked recessive allele causes furry paws in mice. A normal female whose father had furry paws is crossed with a normal male whose father also had furry paws. What is the probability of producing a furry male from this cross?
It is frequently when the environment changes in some way that is unfavourable to an existing population that the organisms begin to reproduce sexually. Explain the importance of this switch from asexual to sexual reproduction.
Animals can be classified according to their mode of thermoregulation. Sort the animals below, indicating their likely thermoregulatory strategy. Note that poikilotherms are sometimes referred to as heterotherms.
A wild cherry tree has 5 pairs of chromosomes in its nucleus found in a cell in the vascular cambium. How many linear DNA strands would be located in each of the megaspores found in the flower from the wild cherry tree?
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