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Q1. Why are traditional morphological and physiological characteristics such as organelles, movement, and nutrition not always reliable as synapomorphic character states?
Q2. Suppose you wanted to create an integral membrane protein, and could only use 2 amino acids: L and S (plus 1 methionine to initiate protein synthesis).
a) What series could you use to make a beta barrel with twelve antiparallel strands? Write out one repeat of the sequence as follows: M-(your sequence) 12.
b) Write out the DNA sequence that encodes this repeat, and include the initiating methionine.
How are an ionic bond and a covalent bond different? Give an example of a compound that exhibits ionic bonding and an example of a compound that exhibits a covalent bond.
An article in the local newspaper about ganggrene states that the tissue destroying toxin, lecithianse, is an "organic compound" but people consider "organic" chemicals to mean something good. Explain the apparent contradiction.
After WWII, DDT was widely used to kill mosquitoes. Spraying DDT was effective for some years, but despite continuous spraying at ever increasing concentrations of DDT,
What is the function of lysosome.
Assume you have labeled a glucose molecule with a fluorescent marker so you can follow its path by the kidney. you observe your glucose molecule in renal artery and in the glomerular capsule.
Describe three age-related changes in the skin that would account for the decreased ability of the elderly to maintain body temperature homeostasis.
Determine which variable is the independent variable--the variable that was controlled by the researchers? Is the independent variable on the x -axis or the y -axis?
Environments factors such as low folic acid, low vit b6, b12, inositol, metthionine and high homocysteine increases risk for NTCD. cysteine reduction in diets helps prevention also. What elese can be done to incrase or decrease the chances of a mo..
Why does the the frequency of action potentials increase when the stimulus intensity increases?
In your own words, what is homeostasis? Explain completely. What happens when homeostasis is not maintained?
Due to a spinal injury, a patient has lost pain and temperature sensation on the left half of his body from the waist down. Where is his injury? Where will you expect loss of tactile sensation in this patient.
How do cadherins, IgSF members, and selectins differ at the molecular level in the way they mediate cell-cell adhesion?
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