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Question - Explain the difference between the definition of a prokaryotic species and a eukaryotic species ( in other words, why is it difficult to define a "species " when working with microorganisms?). Explain the difference between the following words: culture, clone, species and stain.
TBP is a relatively small protein (~35kDa) that can bind DNA sequences (the TATA box) on its own with relatively high affinity. However if nuclear extracts are subjected to Gel Filtration Chromatography or Zonal Centrifugation and each eluted/collect..
What types of gametes would be created if the pair of sex chromosomes in males failed to separate in meiosis?
This paper should be a minimum of two pages in length. You are required to use three sources, one of which can be your textbook. All sources used, including your textbook, must be referenced; paraphrased and quoted material must have accompanying ..
Describe the steps in the development of root nodules on aleguminous plant. What is the nature of the recognitionbetween plant and bacterium and how do nod factors help controlthis? How does this compare with recognition in the Agrobacterium-plant sy..
The transfer of electrons from one molecule of NADH to H2O via the electron transfer chain results in the net movements of 8 protons from the mitochondrial matrix into the intermembrane mitochondrial space.
The heat death of the universe seems to be a logical consequence of the Second Law of Thermodynamics. Look for information about this theory and refute or support it.
prior to 1950 the death rate was high which kept the numbers of humans from increasing rapidly. in the 19th century the
Describe any organ-specific cell types that are present and if these cell types have any special structures (e.g., presence of microvilli and/or abundance of particular organelle such as mitochondria).
Suppose that you have discovered two different transposable elements (A and B) in yeast and you inserted an intron into each of the elements. Following transposition of each transposable element, you examine the transposed elements to determine if..
a stretch of DNA 2060 nucleotide-pairs in length is packed into nucleosomes in chromatin. Each nucleosome has 146 base pairsof DNA wrapped around it, and there are 60 base pairs of linker DNA between nucleosomes. How many molecules of Histone H1 w..
1. Biologists frequently use phosphate-buffered solutions in experiments. You need to prepare a sodium phosphate solution at pH 6.7 by mixing NaH2PO4 and Na2HPO4 (pKa =7.2). What are the respective concentration of each of these substances if you w..
For which of the following study questions would a case-crossover study design be appropriate?
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