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Mitochondria certainly do show the markers of a being a cell within a cell. They have their own DNA and transcriptional machinery, they divide on their own, they have their own ribosomes, etc. However just because they have these things does not mean they are derived from some prokaryotic ancestor. What I would like to see in terms of more evidence is what changes these mitochondria have undergone relative to that ancestor and how those changes have taken place. For instance mitochondria do not have the ability to make most of the lipids they need to maintain the structural integrity of their membranes. Of course the prokaryotic ancestor would have had to do this. How then did the present day mitochondria lose this ability?
Myasthenia gravis is an autoimmune disease affecting the neuromuscular junction. In myasthenia gravis, weakness occurs when the nerve impulse to initiate or sustain movement does not adequately reach the muscle cells.
A manufacturing plant is seeking to mix wood chips with corn stover to fire a boiler. The mixture has a target energy content of 18.8 MJ/kg.
q. your friend has now joined a lab that studies vesicle budding from the golgi and has been given a cell line that
Predict the ratio of progeny produced by a mating between two flies with plum-colored eyes and stubble bristles.
Application of an insecticide to control mosquito populations in malaria infested areas quickly resulted in a dominant mutation, R, resulting in insecticide resistance.
Albinism in humans is controlled by a recessive gene (c).Suppose two heterozygous individuals (genotype Cc) marry. Assumethey have six children.
A novel drug has been developed to boost white blood cell production in sick patients. However, drug has serious side effects and it is estimated that it should only be used if WBC concentration reduced to 2,000 cells per microliter.
Suppose if we hire the biological species concept where a population or group of populations within which genes are actually or potentially exchanged by interbreeding.
5-different mutations were derived from base pair substitutions at a single codon. In this codon, the mutant alleles had arginine, leucine.
Design a way to determine the effects of different concentrations of starch on the mass of dialysis tubing bags when the bags are allowed to sit water for several hours.
Describe the factors that determine the major latitudinal climatic zones (the tropics, temperate zones, and polar zones).
The genes dumpy wings, clot eyes, and apterous wings are linked on chromosome II of Drosophila. In a series of two-point mapping crosses, the genetic distances demonstrate below were determined.
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