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Which does not define an embryonic stem (ES) cell? a. They are a type of stem cell isolated from very young mammalian embryos. b. They are the cells in the early embryo that give rise to all of the va
Describe what the structure of DNA look like if we have incorrectly paired nucleotides. Write an explanation of what you observed based on the structure/chemistry of the incorrectly paired nucleotides
What do you predict would happen to the shape of the growth curve if you were to subculture Vibrio growing in log phase rich medium into a poor growth medium?
Question 1: Draw a graph of balloon diameter vs. temperature. What is the correlation? Question 2: What does recessive genetic disease mean?
Question 1: Design an experiment to determine the optimal temperature for enzyme function, complete with controls. Question 2: Where would you find the enzymes for this experiment? What substrate woul
Question 1: Define transcriptional and translational coupling. Question 2: What structural and genomic characteristics of the prokaryotic cell allows for the coupling of transcription and translatio
What is diatomaceous earth? Give one example of what it is used for? What is the composition of the cell wall of a diatom?
What is the theoretical resolution for your microscope if you use the 40X lens and a wavelength of ? = 475 nm (Show calculation and report result in ?m):
Why do we care about glucose uptake regarding skeletal muscle? Can exercise change this process?
Question 1: What enzyme catalyzes the synthesis of RNA primers in prokaryotic DNA replication? Why is this necessary? Question 2: What disease/diseases are associated with acetylcholine receptors?
Question 1: Describe how the production of non functional polar bodies is adaptive for the resulting ovum. Question 2: Why is a reaction at pH 7 faster than the rate at pH3?
Question 1: What's the difference between active and passive membrane transport? Question 2: Osmosis is concerned with the movement of which molecules across semipermeable membranes?
Question 1: What causes a blind spot on the retina? (include bleeching and pigment in a same sentance) Question 2: Why are you unable to focus on images closer to your eye than the near point values y
How do changes in allele frequencies over time differ between the two scenarios of selection with mutation vs. selection only?
Describe an example of how to understand the phylogeny of any group of organism could be used.
Assume that the protein binds DNA. How can you assess whether it is a site-specific or non-specific DNA-binding protein? How can you determine the binding affinity of the protein for the DNA?
Question 1: Describe how ribbon-helix-helix transcription factors specifically bind DNA.? Question 2: Describe the mechanisms used by a generic DNA-binding protein to accelerate target site location i
Discuss the merits and shortcomings of rank-abundance plots as a tool to understand the ecological processes acting on communities.
a. Movement of fluid through the vascular tissue of plants is often expressed using water potentials. What does the negative sign tell you about a cell's water potential? b. What two processes or e
Amoeba: What is the position of the contractile vacuole relative to the advancing pseudopodium?
What two parameters of branching influence glycogen's structure? Why and how do they need to be optimized?
What is peculiar about the activation of glucose for the glycogen synthase reaction? Why is it important, from the thermodynamics point of view?
Karl von Frisch studied the interactions between bees and flowers. He wanted to know how bees select which flower to go to. In particular, he wanted to know whether the bees could see different flow
Why would an abnormally low ATP concentration in the red blood cells lead to a shortened eryrthocyte life span?
Question 1: Which human chromosome is the longest sex chromosome? Question 2: How many C chromosomes will an individual with turner syndrome Have?