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he Lac Repressor protein, which we will talk about a bit later in the course, is important for controlling expression of a number of genes in E. coli. There are about 10 copies of the repressor per cell. What is the intracellular molar concentration of the repressor molecules? Give your answer in nanomolar (nM) rounded to the second decimal place. The following facts should help you reach the correct answer: For this purpose assume an E. coli cell is a cylinder whose diameter is 1 µm and its length is 2 µm. Volume of a cylinder is [length x area of cross section] ? = 3.14 1 mL = 1 cm 3 Avogadro's number = 6 x 10 23 1 nM = 10 -9 M
Define Natural Adulteration - Types of Adulteration? These are the chemicals, organic compounds or radicals which are naturally present in the food and are harmful to the healt
Define Functions of Pyridoxine? There are three different forms of vitamin B6, namely pyridoxine, pyridoxarnine, and pyridoxal. All three must be phosphorylated and the 5'-phos
T ypes of hormones - (i) Releasing and Inhibitory hormones - Hormones of hypothalamus and kidney (renin) which control secretion of trophic hormones. (ii) Trophic hormon
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State in brief about the Zinc It is concerned with the functioning of sulphydryl compounds, such as cysteine, in regulation of redox potential within the cell. Zinc is somet
A professor wonders whether good study habits lead to better grades in the final exam. Formulate a specific hypothesis and then design an experiment to test it. In your answer outl
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Collenchyma are one of the three major cell types in the plants; are elongated and have thicker walls than parenchyma cells and are usually arranged in strands; gives support and
What is genetic equilibrium? The Genetic equilibrium is the result of the Hardy-Weinberg law, a principle that affirms that under specific conditions the frequencies of the all
What might happen to membranes if many -OH groups were added to the tails of phospholipids?
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