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1. You started life as a single cell, Remember Virchow's statement that all cells come from pre-existing cells. Where did your original Cell come from?
2. Where did your parent's cells come from?
3. Your body is now composed of trillions of cells. Where did the rest of your cells come from?
4. If all cells come from pre-existing cells, then all cells must be related. What evidence can you cite to support this statement?
5. We have seen how your cells are related to those of your parents. How are your cells related to all other humans?
6. How are your cells related to those of any other organism?
7. One of the important implications of Virchow's statement that all cells come from pre-existing cells is that it relates the Cell Theory with the Theory of Evolution. That is, Virchow's statement is consistent with Darwin's theory. Explain.
8. There is one obvious exception to Virchow's conclusion that all cells come from pre-existing cells. What is it?
Explain how the silent substitution rate (single base substitutions at sequence locations that do not affect the amino acid sequence) can be used to estimate the base mutation rate (µ).
Assume that the genes are located on separate chromosomes. An F1 is produces by crossing the original mutant A with the original mutant B. This F1 is testcrossed: What propotion of testcross progeny will have no trichomes?
What are possible sources of the microorganisms in the bean water?
An ecologist recorded 12 white-tailed deer, Odocoileus Virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing? a. density b. dispersion c. carrying capacity d. quadrats e. range
What do you think about the effect SDS, NaOH, and HCl will have on the cell membrane of a red cabbage leaf?
1.paclitaxel is a anticancer drug. it stabilizes microtubules and as a result interferes with the normal breakdown of
Please provide two reasonable explanations for the observed data. B) If these data are, in fact from a temperature assay, would you suspect that the tubes had enzyme added to them? Why or why not?
Suppose when performing 2-proteins, one having a molecular weight of 10000 and the other having molecular weight of 100000. both are globular and of similar spherical shape.
Consider an individual who has type O blood. Her brother has type AB. Her father's sister has type AB blood, and her father's father had a BB genotype. Her mother's sister has type O blood, and her mother's brother has type B blood. What are the g..
1. describe the steps from viral attachment to translation of the hiv genome in the host cell and the role of role of
The stimulation of a motor neuron ultimately results in the release of a neurotransmitter at the synapse between the neuron and a muscle cell. What type of neurotransmitter is used at these neuromuscular junctions?
Describe how one might determine which proteins in Escherichia coli are repressed when a culture is shifted from a minimal medium (containing only a single carbon source) to a rich medium containing many amino acids, bases, and vitamins. How might..
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